Finding the Fourth Proportional to 1,016.15, 1,399.07 and 896.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.15 : 1,399.07 = 896.37 : x
2. Step 2: Convert to fraction form
   1,016.15/1,399.07 = 896.37/x
3. Step 3: Cross multiply
   1,016.15x = 1,399.07 × 896.37
4. Step 4: Simplify right side
   1,016.15x = 1,254,081.37
5. Step 5: Solve for x
   x = 1,254,081.37/1,016.15
6. Step 6: Final answer
   x = 1,234.16