Finding the Fourth Proportional to 2,414.52, 3,620.52 and 854.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,414.52 : 3,620.52 = 854.28 : x
2. Step 2: Convert to fraction form
   2,414.52/3,620.52 = 854.28/x
3. Step 3: Cross multiply
   2,414.52x = 3,620.52 × 854.28
4. Step 4: Simplify right side
   2,414.52x = 3,092,937.83
5. Step 5: Solve for x
   x = 3,092,937.83/2,414.52
6. Step 6: Final answer
   x = 1,280.97