Finding the Fourth Proportional to 2,111.36, 3,168.36 and 1,016.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.36 : 3,168.36 = 1,016.86 : x
2. Step 2: Convert to fraction form
   2,111.36/3,168.36 = 1,016.86/x
3. Step 3: Cross multiply
   2,111.36x = 3,168.36 × 1,016.86
4. Step 4: Simplify right side
   2,111.36x = 3,221,778.55
5. Step 5: Solve for x
   x = 3,221,778.55/2,111.36
6. Step 6: Final answer
   x = 1,525.93