Finding the Fourth Proportional to 2,233.86, 3,082.67 and 1,239.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,233.86 : 3,082.67 = 1,239.13 : x
2. Step 2: Convert to fraction form
   2,233.86/3,082.67 = 1,239.13/x
3. Step 3: Cross multiply
   2,233.86x = 3,082.67 × 1,239.13
4. Step 4: Simplify right side
   2,233.86x = 3,819,828.88
5. Step 5: Solve for x
   x = 3,819,828.88/2,233.86
6. Step 6: Final answer
   x = 1,709.97