Finding the Fourth Proportional to 2,025.52, 3,038.78 and 854.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,025.52 : 3,038.78 = 854.90 : x
2. Step 2: Convert to fraction form
   2,025.52/3,038.78 = 854.90/x
3. Step 3: Cross multiply
   2,025.52x = 3,038.78 × 854.90
4. Step 4: Simplify right side
   2,025.52x = 2,597,839.21
5. Step 5: Solve for x
   x = 2,597,839.21/2,025.52
6. Step 6: Final answer
   x = 1,282.55