A 8-year promissory note for $6,802 dated today bearing interest at 3% compounded quarterly is discounted four years after the date of issue at 6% compounded semi-annually. What are the proceeds of the note?

Payment of $887 due 2 months ago and $476 due today are to be repaid by a payment of $400 one month from today and the balance in 10 months from now. If money is worth 4% compounded monthly, and the agreed focal date is 10 months from today. What is the size of the final payment?