PLEASE HELP

You want to build your savings such that you have a 20% down payment for home that might cost as much as $300,000. You have nothing saved yet, but plan on making monthly contributions to a balanced portfolio of ETFs that you expect will grow at an average rate of 4.4% per year. Your first payment will come at the end of this month. You would like to have the down payment 67 months from now. How much will you have to save per month to meet your goal? Answer in dollars and cents and have the answer be positive