Frank A. answered 10/08/20
Knowledge, experience and insight from decades of teaching physics.
You have not actually stated what quantity you are trying to calculate. Your answer is also devoid of units.
My best guess is that you are trying to determine buoyant force.
Since buoyant force = weight of the fluid displaced, then
F = 997.606•1000•9.81 should yield the correct value in units of N.
Mr. A