Finding the Fourth Proportional to 1,057.71, 1,586.82 and 327.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,057.71 : 1,586.82 = 327.27 : x
2. Step 2: Convert to fraction form
   1,057.71/1,586.82 = 327.27/x
3. Step 3: Cross multiply
   1,057.71x = 1,586.82 × 327.27
4. Step 4: Simplify right side
   1,057.71x = 519,325.76
5. Step 5: Solve for x
   x = 519,325.76/1,057.71
6. Step 6: Final answer
   x = 490.99