Finding the Fourth Proportional to 3,613.75, 5,417.89 and 2,440.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,613.75 : 5,417.89 = 2,440.43 : x
2. Step 2: Convert to fraction form
   3,613.75/5,417.89 = 2,440.43/x
3. Step 3: Cross multiply
   3,613.75x = 5,417.89 × 2,440.43
4. Step 4: Simplify right side
   3,613.75x = 13,221,968.42
5. Step 5: Solve for x
   x = 13,221,968.42/3,613.75
6. Step 6: Final answer
   x = 3,658.80