Finding the Fourth Proportional to 3,139.25, 4,686.82 and 2,592.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,139.25 : 4,686.82 = 2,592.50 : x
2. Step 2: Convert to fraction form
   3,139.25/4,686.82 = 2,592.50/x
3. Step 3: Cross multiply
   3,139.25x = 4,686.82 × 2,592.50
4. Step 4: Simplify right side
   3,139.25x = 12,150,550.93
5. Step 5: Solve for x
   x = 12,150,550.93/3,139.25
6. Step 6: Final answer
   x = 3,870.53