Finding the Fourth Proportional to 1,016.67, 1,403.01 and 550.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.67 : 1,403.01 = 550.92 : x
2. Step 2: Convert to fraction form
   1,016.67/1,403.01 = 550.92/x
3. Step 3: Cross multiply
   1,016.67x = 1,403.01 × 550.92
4. Step 4: Simplify right side
   1,016.67x = 772,946.27
5. Step 5: Solve for x
   x = 772,946.27/1,016.67
6. Step 6: Final answer
   x = 760.27