Finding the Fourth Proportional to 2,234.34, 3,083.59 and 1,239.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,234.34 : 3,083.59 = 1,239.81 : x
2. Step 2: Convert to fraction form
   2,234.34/3,083.59 = 1,239.81/x
3. Step 3: Cross multiply
   2,234.34x = 3,083.59 × 1,239.81
4. Step 4: Simplify right side
   2,234.34x = 3,823,062.62
5. Step 5: Solve for x
   x = 3,823,062.62/2,234.34
6. Step 6: Final answer
   x = 1,711.05