Finding the Fourth Proportional to 1,082.92, 1,613.52 and 1,078.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,082.92 : 1,613.52 = 1,078.60 : x
2. Step 2: Convert to fraction form
   1,082.92/1,613.52 = 1,078.60/x
3. Step 3: Cross multiply
   1,082.92x = 1,613.52 × 1,078.60
4. Step 4: Simplify right side
   1,082.92x = 1,740,342.67
5. Step 5: Solve for x
   x = 1,740,342.67/1,082.92
6. Step 6: Final answer
   x = 1,607.08