Finding the Fourth Proportional to 2,233.46, 3,082.08 and 1,238.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.46 : 3,082.08 = 1,238.78 : x
2. Step 2: Convert to fraction form
   2,233.46/3,082.08 = 1,238.78/x
3. Step 3: Cross multiply
   2,233.46x = 3,082.08 × 1,238.78
4. Step 4: Simplify right side
   2,233.46x = 3,818,019.06
5. Step 5: Solve for x
   x = 3,818,019.06/2,233.46
6. Step 6: Final answer
   x = 1,709.46