Finding the Fourth Proportional to 1,169.52, 1,613.52 and 671.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,169.52 : 1,613.52 = 671.76 : x
2. Step 2: Convert to fraction form
   1,169.52/1,613.52 = 671.76/x
3. Step 3: Cross multiply
   1,169.52x = 1,613.52 × 671.76
4. Step 4: Simplify right side
   1,169.52x = 1,083,898.20
5. Step 5: Solve for x
   x = 1,083,898.20/1,169.52
6. Step 6: Final answer
   x = 926.79