Finding the Fourth Proportional to 3,912.05, 5,398.29 and 2,233.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,912.05 : 5,398.29 = 2,233.59 : x
2. Step 2: Convert to fraction form
   3,912.05/5,398.29 = 2,233.59/x
3. Step 3: Cross multiply
   3,912.05x = 5,398.29 × 2,233.59
4. Step 4: Simplify right side
   3,912.05x = 12,057,566.56
5. Step 5: Solve for x
   x = 12,057,566.56/3,912.05
6. Step 6: Final answer
   x = 3,082.16