Finding the Fourth Proportional to 1,050.33, 1,449.33 and 630.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,050.33 : 1,449.33 = 630.69 : x
2. Step 2: Convert to fraction form
   1,050.33/1,449.33 = 630.69/x
3. Step 3: Cross multiply
   1,050.33x = 1,449.33 × 630.69
4. Step 4: Simplify right side
   1,050.33x = 914,077.94
5. Step 5: Solve for x
   x = 914,077.94/1,050.33
6. Step 6: Final answer
   x = 870.28