Finding the Fourth Proportional to 1,044.90, 1,441.98 and 572.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.90 : 1,441.98 = 572.79 : x
2. Step 2: Convert to fraction form
   1,044.90/1,441.98 = 572.79/x
3. Step 3: Cross multiply
   1,044.90x = 1,441.98 × 572.79
4. Step 4: Simplify right side
   1,044.90x = 825,951.72
5. Step 5: Solve for x
   x = 825,951.72/1,044.90
6. Step 6: Final answer
   x = 790.46