Please round to the nearest Hundredth $($i$.$e$.,0\mathrm{.}01).$ No Comma!

A square pile is driven into a homogeneous sand layer. The pile's width $($diameter$)$ is $0\mathrm{.}2$ m $.$ The standard penetration resistance near the vicinity of the pile is $18.$ Calculate the ultimate point force $($Op$)$ of the pile. Use Briaud & Tucker method. Hint: Qp $=$ qp x Ap

$Qp=$ kN