Suppose that today security A is presently trading for $84\mathrm{.}24.$ You decide to purchase $1,500$ shares. Security B is presently trading for $89\mathrm{.}99,$ and you decide to short $1,450$ shares. Suppose you have an IMR of $50\%$ and an MM of $25\%.$ Interest on any borrowed funds will be charged $4\mathrm{.}20\%$ APR, monthly compounding, and you intend to utilize your margin to capacity. There is no brokerage fee to short, and you do not earn any interest on cash deposited $-$ earn interest???. All your accounts are aggregated.

Suppose exactly $3$ months from now you notice that Security A was trading at $90\mathrm{.}46$ but you did not know the price of Security B$.$ At what price would Security B have to trade at in order for you to receive a margin call? Round to $4$ decimal places, as $101\mathrm{.}8854,$ for example.