Finding the Fourth Proportional to 3,948.58, 5,448.42 and 2,270.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,948.58 : 5,448.42 = 2,270.05 : x
2. Step 2: Convert to fraction form
   3,948.58/5,448.42 = 2,270.05/x
3. Step 3: Cross multiply
   3,948.58x = 5,448.42 × 2,270.05
4. Step 4: Simplify right side
   3,948.58x = 12,368,185.82
5. Step 5: Solve for x
   x = 12,368,185.82/3,948.58
6. Step 6: Final answer
   x = 3,132.31