Finding the Fourth Proportional to 2,234.35, 3,083.30 and 1,239.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,234.35 : 3,083.30 = 1,239.71 : x
2. Step 2: Convert to fraction form
   2,234.35/3,083.30 = 1,239.71/x
3. Step 3: Cross multiply
   2,234.35x = 3,083.30 × 1,239.71
4. Step 4: Simplify right side
   2,234.35x = 3,822,380.88
5. Step 5: Solve for x
   x = 3,822,380.88/2,234.35
6. Step 6: Final answer
   x = 1,710.73