Finding the Fourth Proportional to 3,863.52, 5,786.27 and 2,820.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,863.52 : 5,786.27 = 2,820.94 : x
2. Step 2: Convert to fraction form
   3,863.52/5,786.27 = 2,820.94/x
3. Step 3: Cross multiply
   3,863.52x = 5,786.27 × 2,820.94
4. Step 4: Simplify right side
   3,863.52x = 16,322,686.38
5. Step 5: Solve for x
   x = 16,322,686.38/3,863.52
6. Step 6: Final answer
   x = 4,224.82