Finding the Fourth Proportional to 2,083.18, 3,123.96 and 696.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,083.18 : 3,123.96 = 696.24 : x
2. Step 2: Convert to fraction form
   2,083.18/3,123.96 = 696.24/x
3. Step 3: Cross multiply
   2,083.18x = 3,123.96 × 696.24
4. Step 4: Simplify right side
   2,083.18x = 2,175,025.91
5. Step 5: Solve for x
   x = 2,175,025.91/2,083.18
6. Step 6: Final answer
   x = 1,044.09