$(50$ pts$)$ Given that the slope distance and nadir angle measured from Point A to Point B were $2068\mathrm{.}00ft$ and $107{37}^{\text{'}}{15}^{\text{'}\text{'}},$ respectively, with a reading of $4\mathrm{.}93ft$ on the rod placed at Point B$,$ determine the elevation of Point B when the instrument height is $5\mathrm{.}25ft$ and the elevation of Point A is $900\mathrm{.}00ft$ above datum. Apply any necessary corrections for curvature and refraction if needed $($use $1000-ft$ rule$).$ Round your final answer to two decimal places. $($in feet$),F=$ distance in thousands of feet.$)$

Elevation of Point B $=$

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