Finding the Fourth Proportional to 1,280.32, 1,909.52 and 1,096

Step by Step Solution

1. Step 1: Write the proportion equation
   1,280.32 : 1,909.52 = 1,096 : x
2. Step 2: Convert to fraction form
   1,280.32/1,909.52 = 1,096/x
3. Step 3: Cross multiply
   1,280.32x = 1,909.52 × 1,096
4. Step 4: Simplify right side
   1,280.32x = 2,092,833.92
5. Step 5: Solve for x
   x = 2,092,833.92/1,280.32
6. Step 6: Final answer
   x = 1,634.62