Reciprocal leveling across a cannon provides the data listed in (ft). The elevation of Y is 5265.879 ft. The elevation of X is required. Instrument at X: +S = 3.182,-S = 9.365,9.370, and 9.368. Instrument at Y: +S = 10.223; -S = 4.037,4.041, and 4.038. Find the elevation of X?