The assembly consists of two posts AB and CD each made from material $1$ having a modulus of elasticity of E$1=77$ GPa and a cross$-$sectional area $A1=0\mathrm{.}00566m^2,$ and a central post made from material $2$ having a modylus of elasticity $E2=160$GPa and cross$-$sectional area $A2=0\mathrm{.}00612m^2.$

If a load $P=3,932N$ is applied to the rigid cap, determine the force $($in N $)$ in each material $1$ only. The distance $d=5m$ and length $L=2m.$

Note: Write your answer up to two decimals.