Finding the Fourth Proportional to 1,016.54, 1,402.83 and 550.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.54 : 1,402.83 = 550.79 : x
2. Step 2: Convert to fraction form
   1,016.54/1,402.83 = 550.79/x
3. Step 3: Cross multiply
   1,016.54x = 1,402.83 × 550.79
4. Step 4: Simplify right side
   1,016.54x = 772,668.24
5. Step 5: Solve for x
   x = 772,668.24/1,016.54
6. Step 6: Final answer
   x = 760.09