Finding the Fourth Proportional to 2,524.86, 3,787.90 and 881.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,524.86 : 3,787.90 = 881.57 : x
2. Step 2: Convert to fraction form
   2,524.86/3,787.90 = 881.57/x
3. Step 3: Cross multiply
   2,524.86x = 3,787.90 × 881.57
4. Step 4: Simplify right side
   2,524.86x = 3,339,306.27
5. Step 5: Solve for x
   x = 3,339,306.27/2,524.86
6. Step 6: Final answer
   x = 1,322.57