Finding the Fourth Proportional to 2,234.06, 3,083.03 and 1,239.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,234.06 : 3,083.03 = 1,239.30 : x
2. Step 2: Convert to fraction form
   2,234.06/3,083.03 = 1,239.30/x
3. Step 3: Cross multiply
   2,234.06x = 3,083.03 × 1,239.30
4. Step 4: Simplify right side
   2,234.06x = 3,820,792.88
5. Step 5: Solve for x
   x = 3,820,792.88/2,234.06
6. Step 6: Final answer
   x = 1,710.25