Finding the Fourth Proportional to 2,186.02, 3,016.68 and 1,191.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.02 : 3,016.68 = 1,191.27 : x
2. Step 2: Convert to fraction form
   2,186.02/3,016.68 = 1,191.27/x
3. Step 3: Cross multiply
   2,186.02x = 3,016.68 × 1,191.27
4. Step 4: Simplify right side
   2,186.02x = 3,593,687.23
5. Step 5: Solve for x
   x = 3,593,687.23/2,186.02
6. Step 6: Final answer
   x = 1,643.94