Finding the Fourth Proportional to 2,233.32, 3,082.14 and 1,238.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.32 : 3,082.14 = 1,238.78 : x
2. Step 2: Convert to fraction form
   2,233.32/3,082.14 = 1,238.78/x
3. Step 3: Cross multiply
   2,233.32x = 3,082.14 × 1,238.78
4. Step 4: Simplify right side
   2,233.32x = 3,818,101.09
5. Step 5: Solve for x
   x = 3,818,101.09/2,233.32
6. Step 6: Final answer
   x = 1,709.61