Finding the Fourth Proportional to 2,722.88, 4,081.46 and 1,263

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.88 : 4,081.46 = 1,263 : x
2. Step 2: Convert to fraction form
   2,722.88/4,081.46 = 1,263/x
3. Step 3: Cross multiply
   2,722.88x = 4,081.46 × 1,263
4. Step 4: Simplify right side
   2,722.88x = 5,154,883.98
5. Step 5: Solve for x
   x = 5,154,883.98/2,722.88
6. Step 6: Final answer
   x = 1,893.17