Finding the Fourth Proportional to 2,498.49, 3,748.37 and 854.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.49 : 3,748.37 = 854.80 : x
2. Step 2: Convert to fraction form
   2,498.49/3,748.37 = 854.80/x
3. Step 3: Cross multiply
   2,498.49x = 3,748.37 × 854.80
4. Step 4: Simplify right side
   2,498.49x = 3,204,106.68
5. Step 5: Solve for x
   x = 3,204,106.68/2,498.49
6. Step 6: Final answer
   x = 1,282.42