Finding the Fourth Proportional to 1,050.33, 1,449.45 and 578.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.33 : 1,449.45 = 578.25 : x
2. Step 2: Convert to fraction form
   1,050.33/1,449.45 = 578.25/x
3. Step 3: Cross multiply
   1,050.33x = 1,449.45 × 578.25
4. Step 4: Simplify right side
   1,050.33x = 838,144.46
5. Step 5: Solve for x
   x = 838,144.46/1,050.33
6. Step 6: Final answer
   x = 797.98