Finding the Fourth Proportional to 2,639.52, 3,956.27 and 1,250.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639.52 : 3,956.27 = 1,250.89 : x
2. Step 2: Convert to fraction form
   2,639.52/3,956.27 = 1,250.89/x
3. Step 3: Cross multiply
   2,639.52x = 3,956.27 × 1,250.89
4. Step 4: Simplify right side
   2,639.52x = 4,948,868.21
5. Step 5: Solve for x
   x = 4,948,868.21/2,639.52
6. Step 6: Final answer
   x = 1,874.91