Finding the Fourth Proportional to 2,186.72, 3,279.86 and 1,016.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.72 : 3,279.86 = 1,016.22 : x
2. Step 2: Convert to fraction form
   2,186.72/3,279.86 = 1,016.22/x
3. Step 3: Cross multiply
   2,186.72x = 3,279.86 × 1,016.22
4. Step 4: Simplify right side
   2,186.72x = 3,333,059.33
5. Step 5: Solve for x
   x = 3,333,059.33/2,186.72
6. Step 6: Final answer
   x = 1,524.23