Finding the Fourth Proportional to 3,665.68, 5,057.31 and 2,339.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,665.68 : 5,057.31 = 2,339.98 : x
2. Step 2: Convert to fraction form
   3,665.68/5,057.31 = 2,339.98/x
3. Step 3: Cross multiply
   3,665.68x = 5,057.31 × 2,339.98
4. Step 4: Simplify right side
   3,665.68x = 11,834,004.25
5. Step 5: Solve for x
   x = 11,834,004.25/3,665.68
6. Step 6: Final answer
   x = 3,228.32