Finding the Fourth Proportional to 1,350.24, 1,863.32 and 760.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,350.24 : 1,863.32 = 760.80 : x
2. Step 2: Convert to fraction form
   1,350.24/1,863.32 = 760.80/x
3. Step 3: Cross multiply
   1,350.24x = 1,863.32 × 760.80
4. Step 4: Simplify right side
   1,350.24x = 1,417,613.86
5. Step 5: Solve for x
   x = 1,417,613.86/1,350.24
6. Step 6: Final answer
   x = 1,049.90