GandaIf was scheduled to make payments of $4500 in 1 years from now, and $6000 in

GandaIf was scheduled to make payments of $4500 in 1 ½  years from now, and $6000 in 3 ½  years from now. He is proposing an alternative arrangement that would involve a payment in 6 months from now, followed by a payment of $10,000 in 3 years from now. How much would the payment in 6 months from now need to be in order for the two streams to be economically equivalent? Assume that money can earn 3% compounded semiannually.