Finding the Fourth Proportional to 1,385.76, 1,912.36 and 796.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.76 : 1,912.36 = 796.32 : x
2. Step 2: Convert to fraction form
   1,385.76/1,912.36 = 796.32/x
3. Step 3: Cross multiply
   1,385.76x = 1,912.36 × 796.32
4. Step 4: Simplify right side
   1,385.76x = 1,522,850.52
5. Step 5: Solve for x
   x = 1,522,850.52/1,385.76
6. Step 6: Final answer
   x = 1,098.93