Finding the Fourth Proportional to 793.18, 1,191.59 and 760.38

Step by Step Solution

1. Step 1: Write the proportion equation
   793.18 : 1,191.59 = 760.38 : x
2. Step 2: Convert to fraction form
   793.18/1,191.59 = 760.38/x
3. Step 3: Cross multiply
   793.18x = 1,191.59 × 760.38
4. Step 4: Simplify right side
   793.18x = 906,061.20
5. Step 5: Solve for x
   x = 906,061.20/793.18
6. Step 6: Final answer
   x = 1,142.31