Finding the Fourth Proportional to 1,385.86, 1,911.96 and 796.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.86 : 1,911.96 = 796.08 : x
2. Step 2: Convert to fraction form
   1,385.86/1,911.96 = 796.08/x
3. Step 3: Cross multiply
   1,385.86x = 1,911.96 × 796.08
4. Step 4: Simplify right side
   1,385.86x = 1,522,073.12
5. Step 5: Solve for x
   x = 1,522,073.12/1,385.86
6. Step 6: Final answer
   x = 1,098.29