Finding the Fourth Proportional to 5,498.28, 8,249.94 and 2,578.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,498.28 : 8,249.94 = 2,578.50 : x
2. Step 2: Convert to fraction form
   5,498.28/8,249.94 = 2,578.50/x
3. Step 3: Cross multiply
   5,498.28x = 8,249.94 × 2,578.50
4. Step 4: Simplify right side
   5,498.28x = 21,272,470.29
5. Step 5: Solve for x
   x = 21,272,470.29/5,498.28
6. Step 6: Final answer
   x = 3,868.93