Finding the Fourth Proportional to 1,050.52, 1,449.69 and 578.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.52 : 1,449.69 = 578.43 : x
2. Step 2: Convert to fraction form
   1,050.52/1,449.69 = 578.43/x
3. Step 3: Cross multiply
   1,050.52x = 1,449.69 × 578.43
4. Step 4: Simplify right side
   1,050.52x = 838,544.19
5. Step 5: Solve for x
   x = 838,544.19/1,050.52
6. Step 6: Final answer
   x = 798.22