Finding the Fourth Proportional to 2,613.34, 3,601.92 and 2,490.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,613.34 : 3,601.92 = 2,490.31 : x
2. Step 2: Convert to fraction form
   2,613.34/3,601.92 = 2,490.31/x
3. Step 3: Cross multiply
   2,613.34x = 3,601.92 × 2,490.31
4. Step 4: Simplify right side
   2,613.34x = 8,969,897.40
5. Step 5: Solve for x
   x = 8,969,897.40/2,613.34
6. Step 6: Final answer
   x = 3,432.35