Finding the Fourth Proportional to 2,057.74, 3,086.64 and 1,442.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,057.74 : 3,086.64 = 1,442.41 : x
2. Step 2: Convert to fraction form
   2,057.74/3,086.64 = 1,442.41/x
3. Step 3: Cross multiply
   2,057.74x = 3,086.64 × 1,442.41
4. Step 4: Simplify right side
   2,057.74x = 4,452,192.69
5. Step 5: Solve for x
   x = 4,452,192.69/2,057.74
6. Step 6: Final answer
   x = 2,163.63