Finding the Fourth Proportional to 3,912.18, 5,399.18 and 2,233.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,912.18 : 5,399.18 = 2,233.83 : x
2. Step 2: Convert to fraction form
   3,912.18/5,399.18 = 2,233.83/x
3. Step 3: Cross multiply
   3,912.18x = 5,399.18 × 2,233.83
4. Step 4: Simplify right side
   3,912.18x = 12,060,880.28
5. Step 5: Solve for x
   x = 12,060,880.28/3,912.18
6. Step 6: Final answer
   x = 3,082.91