Rizal figures that the two largest expenses down the road would be those related to the wedding and down payment on a house. He estimates that the wedding, which will take place in twelve months, should cost about RM15,000 in today's value. Furthermore, he plans to move into a RM250,000 house (in today's terms) after 5 years, and would need 20% for a down payment. Rizal is aware that his cost estimates are in current terms and would need to be adjusted for 4 percent annual inflation rate. If Rizal starts saving immediately for the 20% down payment on his house, which he plans to pay the developer five years from today, how much additional money will he need to save in his bank account each month?