Finding the Fourth Proportional to 2,589.28, 3,882.72 and 833.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,589.28 : 3,882.72 = 833.96 : x
2. Step 2: Convert to fraction form
   2,589.28/3,882.72 = 833.96/x
3. Step 3: Cross multiply
   2,589.28x = 3,882.72 × 833.96
4. Step 4: Simplify right side
   2,589.28x = 3,238,025.55
5. Step 5: Solve for x
   x = 3,238,025.55/2,589.28
6. Step 6: Final answer
   x = 1,250.55