Payments of $1,700 in 1 year and another $2,100 in 6 years to settle a loan are to be rescheduled with a payment of $900 in 5 months and the balance...

Payments of $1,700 in 1 year and another $2,100 in 6 years to settle a loan are to be rescheduled with a payment of $900 in 5 months and the balance in 20 months. Calculate the payment required in 20 months for the rescheduled option to settle the loan if money earns 4.25% compounded semi-annually during the above periods.