Finding the Fourth Proportional to 1,016.48, 1,402.75 and 550.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.48 : 1,402.75 = 550.73 : x
2. Step 2: Convert to fraction form
   1,016.48/1,402.75 = 550.73/x
3. Step 3: Cross multiply
   1,016.48x = 1,402.75 × 550.73
4. Step 4: Simplify right side
   1,016.48x = 772,536.51
5. Step 5: Solve for x
   x = 772,536.51/1,016.48
6. Step 6: Final answer
   x = 760.01