1- A loan has been settled to be paid by two payments. The first payment of $1500 was due one year ago. The second payment of $2500 is due three years from now. The debtor missed the first payment, and now proposes three payments that will be economically equivalent to the two original payments. The proposal is for the payment of $1000 today, a second payment in 1-7 year, and the third payment which is twice the second payment in three years. What should the second and third payment be if money can earn 8% compound interest semi-annually