A debtor owing payments of $750 due today, $1000 due in 2 years, and $1250 due in

Question:

A debtor owing payments of $750 due today, $1000 due in 2 years, and $1250 due in 4 years requests a payout figure to settle all three obligations by means of a single economically equivalent payment 18 months from now. What is that amount, if the payee can earn 9.5% compounded semiannually?