Finding the Fourth Proportional to 2,086.92, 3,142.71 and 1,816.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.92 : 3,142.71 = 1,816.27 : x
2. Step 2: Convert to fraction form
   2,086.92/3,142.71 = 1,816.27/x
3. Step 3: Cross multiply
   2,086.92x = 3,142.71 × 1,816.27
4. Step 4: Simplify right side
   2,086.92x = 5,707,995.22
5. Step 5: Solve for x
   x = 5,707,995.22/2,086.92
6. Step 6: Final answer
   x = 2,735.13