Finding the Fourth Proportional to 5,560.71, 8,342.28 and 1,665.15

Step by Step Solution

1. Step 1: Write the proportion equation
   5,560.71 : 8,342.28 = 1,665.15 : x
2. Step 2: Convert to fraction form
   5,560.71/8,342.28 = 1,665.15/x
3. Step 3: Cross multiply
   5,560.71x = 8,342.28 × 1,665.15
4. Step 4: Simplify right side
   5,560.71x = 13,891,147.54
5. Step 5: Solve for x
   x = 13,891,147.54/5,560.71
6. Step 6: Final answer
   x = 2,498.09