Finding the Fourth Proportional to 2,234.69, 3,083.62 and 1,239.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,234.69 : 3,083.62 = 1,239.95 : x
2. Step 2: Convert to fraction form
   2,234.69/3,083.62 = 1,239.95/x
3. Step 3: Cross multiply
   2,234.69x = 3,083.62 × 1,239.95
4. Step 4: Simplify right side
   2,234.69x = 3,823,522.30
5. Step 5: Solve for x
   x = 3,823,522.30/2,234.69
6. Step 6: Final answer
   x = 1,710.99