Megan, a widow, joined her employer's defined contribution pension plan 28 years ago, and is now reaching age 65. Megan would like to use her pension assets of $267,432 to purchase a life annuity with monthly payments starting at the end of her first month of retirement. Assuming an annual nominal return of 5%, compounded monthly, and a life expectancy of 25 years.

What monthly income will Megan receive from her current pension assets?