Finding the Fourth Proportional to 2,866.82, 3,952.50 and 1,856.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866.82 : 3,952.50 = 1,856.73 : x
2. Step 2: Convert to fraction form
   2,866.82/3,952.50 = 1,856.73/x
3. Step 3: Cross multiply
   2,866.82x = 3,952.50 × 1,856.73
4. Step 4: Simplify right side
   2,866.82x = 7,338,725.33
5. Step 5: Solve for x
   x = 7,338,725.33/2,866.82
6. Step 6: Final answer
   x = 2,559.88