<<See if you can pull up an online record of the conversion transaction. (I was able to do so with Ameritrade when I needed similar information.) Box 1 of the 1099-R, the only figure you need from them, will be the value shown at the time of conversion.>>

i want to be absolutely clear so please bear with me.

let say i had a 401k converted to traditional at that time it was $10,000; when i converted the traditional to roth ira the value became $3,000

box 1 of 1099R would be 3000$?
thanks again everyone!