Finding the Fourth Proportional to 2,865.82, 3,959.10 and 2,730.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,865.82 : 3,959.10 = 2,730.82 : x
2. Step 2: Convert to fraction form
   2,865.82/3,959.10 = 2,730.82/x
3. Step 3: Cross multiply
   2,865.82x = 3,959.10 × 2,730.82
4. Step 4: Simplify right side
   2,865.82x = 10,811,589.46
5. Step 5: Solve for x
   x = 10,811,589.46/2,865.82
6. Step 6: Final answer
   x = 3,772.60