Finding the Fourth Proportional to 1,200.97, 1,799.33 and 550.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.97 : 1,799.33 = 550.34 : x
2. Step 2: Convert to fraction form
   1,200.97/1,799.33 = 550.34/x
3. Step 3: Cross multiply
   1,200.97x = 1,799.33 × 550.34
4. Step 4: Simplify right side
   1,200.97x = 990,231.52
5. Step 5: Solve for x
   x = 990,231.52/1,200.97
6. Step 6: Final answer
   x = 824.53