Finding the Fourth Proportional to 2,498.24, 3,747.82 and 854.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.24 : 3,747.82 = 854.40 : x
2. Step 2: Convert to fraction form
   2,498.24/3,747.82 = 854.40/x
3. Step 3: Cross multiply
   2,498.24x = 3,747.82 × 854.40
4. Step 4: Simplify right side
   2,498.24x = 3,202,137.41
5. Step 5: Solve for x
   x = 3,202,137.41/2,498.24
6. Step 6: Final answer
   x = 1,281.76