Finding the Fourth Proportional to 2,665.20, 3,998.04 and 933.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.20 : 3,998.04 = 933.52 : x
2. Step 2: Convert to fraction form
   2,665.20/3,998.04 = 933.52/x
3. Step 3: Cross multiply
   2,665.20x = 3,998.04 × 933.52
4. Step 4: Simplify right side
   2,665.20x = 3,732,250.30
5. Step 5: Solve for x
   x = 3,732,250.30/2,665.20
6. Step 6: Final answer
   x = 1,400.36