Dominic Torreto borrows $300,000 from a lending company in his hometown at 12% interest compounded monthly. To fulfill his obligation to repay the loan, Dominic agreed to start paying the six (6) equal monthly payments starting next month.

1. If Dominic failed to pay the 2nd and 3rd monthly amortization, how much shall be the required single payment on the fifth month to fully pay his outstanding obligation?
2. Supposed that he will still not be able to pay the single total payment on the Fifth month as stated in question 1 above, and assuming further that both parties agree that the outstanding obligations shall instead be paid in 7 equal monthly installments, at 15% compounded monthly, starting on the 9th month, what will the value of such monthly installment be?