Finding the Fourth Proportional to 1,016.98, 1,403.81 and 797.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.98 : 1,403.81 = 797.47 : x
2. Step 2: Convert to fraction form
   1,016.98/1,403.81 = 797.47/x
3. Step 3: Cross multiply
   1,016.98x = 1,403.81 × 797.47
4. Step 4: Simplify right side
   1,016.98x = 1,119,496.36
5. Step 5: Solve for x
   x = 1,119,496.36/1,016.98
6. Step 6: Final answer
   x = 1,100.80