Finding the Fourth Proportional to 3,638.71, 5,449.86 and 2,404.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,638.71 : 5,449.86 = 2,404.42 : x
2. Step 2: Convert to fraction form
   3,638.71/5,449.86 = 2,404.42/x
3. Step 3: Cross multiply
   3,638.71x = 5,449.86 × 2,404.42
4. Step 4: Simplify right side
   3,638.71x = 13,103,752.38
5. Step 5: Solve for x
   x = 13,103,752.38/3,638.71
6. Step 6: Final answer
   x = 3,601.21