Finding the Fourth Proportional to 2,498.10, 3,747.90 and 854.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.10 : 3,747.90 = 854.64 : x
2. Step 2: Convert to fraction form
   2,498.10/3,747.90 = 854.64/x
3. Step 3: Cross multiply
   2,498.10x = 3,747.90 × 854.64
4. Step 4: Simplify right side
   2,498.10x = 3,203,108.46
5. Step 5: Solve for x
   x = 3,203,108.46/2,498.10
6. Step 6: Final answer
   x = 1,282.22