Finding the Fourth Proportional to 2,866.58, 3,957.82 and 2,567.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866.58 : 3,957.82 = 2,567.69 : x
2. Step 2: Convert to fraction form
   2,866.58/3,957.82 = 2,567.69/x
3. Step 3: Cross multiply
   2,866.58x = 3,957.82 × 2,567.69
4. Step 4: Simplify right side
   2,866.58x = 10,162,454.84
5. Step 5: Solve for x
   x = 10,162,454.84/2,866.58
6. Step 6: Final answer
   x = 3,545.15