Grouse Corporation, a calendar year C corporation, had taxable income of $1,400,000, $1,200,000, and $700,000 for 2017, 2018, and 2019, respectively. Grouse has taxable income of $1,600,000 for 2020.

What are Grouse Corporation's minimum required estimated tax payments for 2020?

April 15, 2020: $____

June 15, 2020: $ _____

September 15,2020: $ _____

December 15, 2020: $ _______

Total: $ ______