Finding the Fourth Proportional to 3,653.91, 5,040.72 and 2,657.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,653.91 : 5,040.72 = 2,657.34 : x
2. Step 2: Convert to fraction form
   3,653.91/5,040.72 = 2,657.34/x
3. Step 3: Cross multiply
   3,653.91x = 5,040.72 × 2,657.34
4. Step 4: Simplify right side
   3,653.91x = 13,394,906.88
5. Step 5: Solve for x
   x = 13,394,906.88/3,653.91
6. Step 6: Final answer
   x = 3,665.91