Finding the Fourth Proportional to 1,050.38, 1,449.59 and 578.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.38 : 1,449.59 = 578.27 : x
2. Step 2: Convert to fraction form
   1,050.38/1,449.59 = 578.27/x
3. Step 3: Cross multiply
   1,050.38x = 1,449.59 × 578.27
4. Step 4: Simplify right side
   1,050.38x = 838,254.41
5. Step 5: Solve for x
   x = 838,254.41/1,050.38
6. Step 6: Final answer
   x = 798.05