Finding the Fourth Proportional to 2,234.17, 3,083.23 and 1,239.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,234.17 : 3,083.23 = 1,239.69 : x
2. Step 2: Convert to fraction form
   2,234.17/3,083.23 = 1,239.69/x
3. Step 3: Cross multiply
   2,234.17x = 3,083.23 × 1,239.69
4. Step 4: Simplify right side
   2,234.17x = 3,822,249.40
5. Step 5: Solve for x
   x = 3,822,249.40/2,234.17
6. Step 6: Final answer
   x = 1,710.81