Finding the Fourth Proportional to 2,825.94, 3,896.82 and 1,986.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,825.94 : 3,896.82 = 1,986.36 : x
2. Step 2: Convert to fraction form
   2,825.94/3,896.82 = 1,986.36/x
3. Step 3: Cross multiply
   2,825.94x = 3,896.82 × 1,986.36
4. Step 4: Simplify right side
   2,825.94x = 7,740,487.38
5. Step 5: Solve for x
   x = 7,740,487.38/2,825.94
6. Step 6: Final answer
   x = 2,739.08