Populate a cell based on a date range

I have two columns that have the start and end date of the corresponding activity. Across the top of my spreadsheet I have Week ending dates. What I would like to do is check and see if my week ending date falls in that start and end date range. If it does, I want to put a number "1" in a corresponding cell. So if E4 is between the dates in C4 and D4, then put a "1" in F4. If not, leave it null.

To best describe or illustrate your problem you would be better off attaching a dummy workbook, the workbook should contain the same structure and some dummy data of the same type as the type you have in your real workbook - so, if a cell contains numbers & letters in this format abc-123 then that should be reflected in the dummy workbook.

If needed supply a before and after sheet in the workbook so the person helping you can see what you are trying to achieve.

Doing this will ensure you get the result you need!

Does the attached help ?
( it is not necessary to quote entire posts, it makes threads hard to read)

That works great except for 2 things: For some reason, it always excludes the last week ending in the range. For example, if the end date is 12/25, it does place an "x" in the week ending 12/31. Also, if the start and end date are the same day or one day apart, it doesn't populate anything.