Finding the Fourth Proportional to 2,233.73, 3,082.31 and 1,238.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.73 : 3,082.31 = 1,238.75 : x
2. Step 2: Convert to fraction form
   2,233.73/3,082.31 = 1,238.75/x
3. Step 3: Cross multiply
   2,233.73x = 3,082.31 × 1,238.75
4. Step 4: Simplify right side
   2,233.73x = 3,818,189.91
5. Step 5: Solve for x
   x = 3,818,189.91/2,233.73
6. Step 6: Final answer
   x = 1,709.34