Finding the Fourth Proportional to 1,082.49, 1,493.69 and 610.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.49 : 1,493.69 = 610.31 : x
2. Step 2: Convert to fraction form
   1,082.49/1,493.69 = 610.31/x
3. Step 3: Cross multiply
   1,082.49x = 1,493.69 × 610.31
4. Step 4: Simplify right side
   1,082.49x = 911,613.94
5. Step 5: Solve for x
   x = 911,613.94/1,082.49
6. Step 6: Final answer
   x = 842.15