A rectangular storage tank is sealed and pressurized, P$,$ to $573\mathrm{.}5$ kPa $($ga$).$ It stores a liquid with a relative density of $1\mathrm{.}4$

The liquid in the tank has dimensions:

H $=15\mathrm{.}3$ m

W $=4$ m

L $=5\mathrm{.}4$ m

What is the force acting on the bottom of the tank due to the hydrostatic pressure of the fluid? Answer in kN$,$ to $2$x decimal places