Finding the Fourth Proportional to 1,044.34, 1,441.28 and 578.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.34 : 1,441.28 = 578.58 : x
2. Step 2: Convert to fraction form
   1,044.34/1,441.28 = 578.58/x
3. Step 3: Cross multiply
   1,044.34x = 1,441.28 × 578.58
4. Step 4: Simplify right side
   1,044.34x = 833,895.78
5. Step 5: Solve for x
   x = 833,895.78/1,044.34
6. Step 6: Final answer
   x = 798.49