For member (2), $\mathrm{P}$ must not produce more than $348.75 \mathrm{kN}$ of axial force in member (2). Note that force magnitudes are considered here. Consequently, only the absolute value is considered in the inequality.

$$\begin{gathered} \mathrm{P}\le \left|-1.47557 {\mathrm{F}}_2\right| \\ \le \left|-1.47557(348.75 \mathrm{kN})\right| \\ \le 514.61 \mathrm{kN} \end{gathered}$$