Finding the Fourth Proportional to 1,050.29, 1,449.34 and 578.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.29 : 1,449.34 = 578.17 : x
2. Step 2: Convert to fraction form
   1,050.29/1,449.34 = 578.17/x
3. Step 3: Cross multiply
   1,050.29x = 1,449.34 × 578.17
4. Step 4: Simplify right side
   1,050.29x = 837,957.30
5. Step 5: Solve for x
   x = 837,957.30/1,050.29
6. Step 6: Final answer
   x = 797.84