Finding the Fourth Proportional to 1,168.80, 1,613.04 and 671.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,168.80 : 1,613.04 = 671.52 : x
2. Step 2: Convert to fraction form
   1,168.80/1,613.04 = 671.52/x
3. Step 3: Cross multiply
   1,168.80x = 1,613.04 × 671.52
4. Step 4: Simplify right side
   1,168.80x = 1,083,188.62
5. Step 5: Solve for x
   x = 1,083,188.62/1,168.80
6. Step 6: Final answer
   x = 926.75