Finding the Fourth Proportional to 2,864.82, 3,957.72 and 2,729.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,864.82 : 3,957.72 = 2,729.82 : x
2. Step 2: Convert to fraction form
   2,864.82/3,957.72 = 2,729.82/x
3. Step 3: Cross multiply
   2,864.82x = 3,957.72 × 2,729.82
4. Step 4: Simplify right side
   2,864.82x = 10,803,863.21
5. Step 5: Solve for x
   x = 10,803,863.21/2,864.82
6. Step 6: Final answer
   x = 3,771.22