Finding the Fourth Proportional to 2,061.79, 3,086.85 and 1,867.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061.79 : 3,086.85 = 1,867.16 : x
2. Step 2: Convert to fraction form
   2,061.79/3,086.85 = 1,867.16/x
3. Step 3: Cross multiply
   2,061.79x = 3,086.85 × 1,867.16
4. Step 4: Simplify right side
   2,061.79x = 5,763,642.85
5. Step 5: Solve for x
   x = 5,763,642.85/2,061.79
6. Step 6: Final answer
   x = 2,795.46