Finding the Fourth Proportional to 2,186.08, 3,016.71 and 1,191.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,186.08 : 3,016.71 = 1,191.33 : x
2. Step 2: Convert to fraction form
   2,186.08/3,016.71 = 1,191.33/x
3. Step 3: Cross multiply
   2,186.08x = 3,016.71 × 1,191.33
4. Step 4: Simplify right side
   2,186.08x = 3,593,898.71
5. Step 5: Solve for x
   x = 3,593,898.71/2,186.08
6. Step 6: Final answer
   x = 1,644.00