Finding the Fourth Proportional to 1,385.92, 1,913.04 and 796.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.92 : 1,913.04 = 796.48 : x
2. Step 2: Convert to fraction form
   1,385.92/1,913.04 = 796.48/x
3. Step 3: Cross multiply
   1,385.92x = 1,913.04 × 796.48
4. Step 4: Simplify right side
   1,385.92x = 1,523,698.10
5. Step 5: Solve for x
   x = 1,523,698.10/1,385.92
6. Step 6: Final answer
   x = 1,099.41