Finding the Fourth Proportional to 3,843.06, 5,761.89 and 2,856.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,843.06 : 5,761.89 = 2,856.30 : x
2. Step 2: Convert to fraction form
   3,843.06/5,761.89 = 2,856.30/x
3. Step 3: Cross multiply
   3,843.06x = 5,761.89 × 2,856.30
4. Step 4: Simplify right side
   3,843.06x = 16,457,686.41
5. Step 5: Solve for x
   x = 16,457,686.41/3,843.06
6. Step 6: Final answer
   x = 4,282.44