Finding the Fourth Proportional to 1,385.68, 1,911.80 and 796.24

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.68 : 1,911.80 = 796.24 : x
2. Step 2: Convert to fraction form
   1,385.68/1,911.80 = 796.24/x
3. Step 3: Cross multiply
   1,385.68x = 1,911.80 × 796.24
4. Step 4: Simplify right side
   1,385.68x = 1,522,251.63
5. Step 5: Solve for x
   x = 1,522,251.63/1,385.68
6. Step 6: Final answer
   x = 1,098.56