Payments of $2400, $1200, and $3000 were originally scheduled to be paid today, 18 months from today,

Question:

Payments of $2400, $1200, and $3000 were originally scheduled to be paid today, 18 months from today, and 33 months from today, respectively. Using 6% compounded quarterly as the rate of return money can earn, what payment six months from now would be equivalent to the three scheduled payments?