Finding the Fourth Proportional to 3,948.52, 5,448.81 and 2,180.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,948.52 : 5,448.81 = 2,180.12 : x
2. Step 2: Convert to fraction form
   3,948.52/5,448.81 = 2,180.12/x
3. Step 3: Cross multiply
   3,948.52x = 5,448.81 × 2,180.12
4. Step 4: Simplify right side
   3,948.52x = 11,879,061.02
5. Step 5: Solve for x
   x = 11,879,061.02/3,948.52
6. Step 6: Final answer
   x = 3,008.49