Finding the Fourth Proportional to 1,044.56, 1,441.50 and 578.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.56 : 1,441.50 = 578.81 : x
2. Step 2: Convert to fraction form
   1,044.56/1,441.50 = 578.81/x
3. Step 3: Cross multiply
   1,044.56x = 1,441.50 × 578.81
4. Step 4: Simplify right side
   1,044.56x = 834,356.05
5. Step 5: Solve for x
   x = 834,356.05/1,044.56
6. Step 6: Final answer
   x = 798.76