Finding the Fourth Proportional to 3,656.18, 5,040.28 and 2,606.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,656.18 : 5,040.28 = 2,606.42 : x
2. Step 2: Convert to fraction form
   3,656.18/5,040.28 = 2,606.42/x
3. Step 3: Cross multiply
   3,656.18x = 5,040.28 × 2,606.42
4. Step 4: Simplify right side
   3,656.18x = 13,137,086.60
5. Step 5: Solve for x
   x = 13,137,086.60/3,656.18
6. Step 6: Final answer
   x = 3,593.12