Finding the Fourth Proportional to 1,144.41, 1,579.28 and 672.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,144.41 : 1,579.28 = 672.32 : x
2. Step 2: Convert to fraction form
   1,144.41/1,579.28 = 672.32/x
3. Step 3: Cross multiply
   1,144.41x = 1,579.28 × 672.32
4. Step 4: Simplify right side
   1,144.41x = 1,061,770.27
5. Step 5: Solve for x
   x = 1,061,770.27/1,144.41
6. Step 6: Final answer
   x = 927.79