Finding the Fourth Proportional to 3,664.82, 5,057.44 and 1,986.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,664.82 : 5,057.44 = 1,986.27 : x
2. Step 2: Convert to fraction form
   3,664.82/5,057.44 = 1,986.27/x
3. Step 3: Cross multiply
   3,664.82x = 5,057.44 × 1,986.27
4. Step 4: Simplify right side
   3,664.82x = 10,045,441.35
5. Step 5: Solve for x
   x = 10,045,441.35/3,664.82
6. Step 6: Final answer
   x = 2,741.05