Finding the Fourth Proportional to 2,786.52, 3,847.98 and 2,086.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786.52 : 3,847.98 = 2,086.68 : x
2. Step 2: Convert to fraction form
   2,786.52/3,847.98 = 2,086.68/x
3. Step 3: Cross multiply
   2,786.52x = 3,847.98 × 2,086.68
4. Step 4: Simplify right side
   2,786.52x = 8,029,502.91
5. Step 5: Solve for x
   x = 8,029,502.91/2,786.52
6. Step 6: Final answer
   x = 2,881.55