Finding the Fourth Proportional to 3,707.31, 5,109.01 and 2,657.55

Step by Step Solution

1. Step 1: Write the proportion equation
   3,707.31 : 5,109.01 = 2,657.55 : x
2. Step 2: Convert to fraction form
   3,707.31/5,109.01 = 2,657.55/x
3. Step 3: Cross multiply
   3,707.31x = 5,109.01 × 2,657.55
4. Step 4: Simplify right side
   3,707.31x = 13,577,449.53
5. Step 5: Solve for x
   x = 13,577,449.53/3,707.31
6. Step 6: Final answer
   x = 3,662.35