Finding the Fourth Proportional to 2,233.43, 3,082.12 and 1,238.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.43 : 3,082.12 = 1,238.85 : x
2. Step 2: Convert to fraction form
   2,233.43/3,082.12 = 1,238.85/x
3. Step 3: Cross multiply
   2,233.43x = 3,082.12 × 1,238.85
4. Step 4: Simplify right side
   2,233.43x = 3,818,284.36
5. Step 5: Solve for x
   x = 3,818,284.36/2,233.43
6. Step 6: Final answer
   x = 1,709.61