Finding the Fourth Proportional to 1,144.92, 1,579.96 and 672.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.92 : 1,579.96 = 672.82 : x
2. Step 2: Convert to fraction form
   1,144.92/1,579.96 = 672.82/x
3. Step 3: Cross multiply
   1,144.92x = 1,579.96 × 672.82
4. Step 4: Simplify right side
   1,144.92x = 1,063,028.69
5. Step 5: Solve for x
   x = 1,063,028.69/1,144.92
6. Step 6: Final answer
   x = 928.47