Finding the Fourth Proportional to 2,233.50, 3,082.20 and 1,238.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.50 : 3,082.20 = 1,238.74 : x
2. Step 2: Convert to fraction form
   2,233.50/3,082.20 = 1,238.74/x
3. Step 3: Cross multiply
   2,233.50x = 3,082.20 × 1,238.74
4. Step 4: Simplify right side
   2,233.50x = 3,818,044.43
5. Step 5: Solve for x
   x = 3,818,044.43/2,233.50
6. Step 6: Final answer
   x = 1,709.44