how can this be solved using a Financial calculator?

Problem 5-19 Future Value of Multiple Annuities (LG5-2) Mssume that you contribute $270 per month to a retirement plan for 15 years. Then you are able to increase the contribution to $540 per month for another 25 years. Given a 6.0 percent interest rate, what is the value of your retirement plan after the 40 years? (Do not round intermediate calculations and round your final answer to 2 decimal places.) Future value of multiple annuities