Finding the Fourth Proportional to 1,044.38, 1,441.25 and 578.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.38 : 1,441.25 = 578.63 : x
2. Step 2: Convert to fraction form
   1,044.38/1,441.25 = 578.63/x
3. Step 3: Cross multiply
   1,044.38x = 1,441.25 × 578.63
4. Step 4: Simplify right side
   1,044.38x = 833,940.39
5. Step 5: Solve for x
   x = 833,940.39/1,044.38
6. Step 6: Final answer
   x = 798.51