Finding the Fourth Proportional to 2,798.88, 3,862.52 and 1,539.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,798.88 : 3,862.52 = 1,539.91 : x
2. Step 2: Convert to fraction form
   2,798.88/3,862.52 = 1,539.91/x
3. Step 3: Cross multiply
   2,798.88x = 3,862.52 × 1,539.91
4. Step 4: Simplify right side
   2,798.88x = 5,947,933.17
5. Step 5: Solve for x
   x = 5,947,933.17/2,798.88
6. Step 6: Final answer
   x = 2,125.11