Finding the Fourth Proportional to 1,976.96, 2,728.42 and 1,092.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,976.96 : 2,728.42 = 1,092.78 : x
2. Step 2: Convert to fraction form
   1,976.96/2,728.42 = 1,092.78/x
3. Step 3: Cross multiply
   1,976.96x = 2,728.42 × 1,092.78
4. Step 4: Simplify right side
   1,976.96x = 2,981,560.08
5. Step 5: Solve for x
   x = 2,981,560.08/1,976.96
6. Step 6: Final answer
   x = 1,508.15