Finding the Fourth Proportional to 3,722.69, 5,139.15 and 2,549.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,722.69 : 5,139.15 = 2,549.90 : x
2. Step 2: Convert to fraction form
   3,722.69/5,139.15 = 2,549.90/x
3. Step 3: Cross multiply
   3,722.69x = 5,139.15 × 2,549.90
4. Step 4: Simplify right side
   3,722.69x = 13,104,318.59
5. Step 5: Solve for x
   x = 13,104,318.59/3,722.69
6. Step 6: Final answer
   x = 3,520.12