Finding the Fourth Proportional to 1,016.48, 1,401.10 and 736.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.48 : 1,401.10 = 736.72 : x
2. Step 2: Convert to fraction form
   1,016.48/1,401.10 = 736.72/x
3. Step 3: Cross multiply
   1,016.48x = 1,401.10 × 736.72
4. Step 4: Simplify right side
   1,016.48x = 1,032,218.39
5. Step 5: Solve for x
   x = 1,032,218.39/1,016.48
6. Step 6: Final answer
   x = 1,015.48