Finding the Fourth Proportional to 1,044.38, 1,441.20 and 624.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.38 : 1,441.20 = 624.48 : x
2. Step 2: Convert to fraction form
   1,044.38/1,441.20 = 624.48/x
3. Step 3: Cross multiply
   1,044.38x = 1,441.20 × 624.48
4. Step 4: Simplify right side
   1,044.38x = 900,002.69
5. Step 5: Solve for x
   x = 900,002.69/1,044.38
6. Step 6: Final answer
   x = 861.76