Finding the Fourth Proportional to 2,665.62, 3,998.79 and 933.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,665.62 : 3,998.79 = 933.84 : x
2. Step 2: Convert to fraction form
   2,665.62/3,998.79 = 933.84/x
3. Step 3: Cross multiply
   2,665.62x = 3,998.79 × 933.84
4. Step 4: Simplify right side
   2,665.62x = 3,734,230.05
5. Step 5: Solve for x
   x = 3,734,230.05/2,665.62
6. Step 6: Final answer
   x = 1,400.89