Finding the Fourth Proportional to 2,665.16, 3,996.92 and 933.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.16 : 3,996.92 = 933.38 : x
2. Step 2: Convert to fraction form
   2,665.16/3,996.92 = 933.38/x
3. Step 3: Cross multiply
   2,665.16x = 3,996.92 × 933.38
4. Step 4: Simplify right side
   2,665.16x = 3,730,620.54
5. Step 5: Solve for x
   x = 3,730,620.54/2,665.16
6. Step 6: Final answer
   x = 1,399.78