Finding the Fourth Proportional to 3,945.25, 5,444.82 and 2,948.80

Step by Step Solution

1. Step 1: Write the proportion equation
   3,945.25 : 5,444.82 = 2,948.80 : x
2. Step 2: Convert to fraction form
   3,945.25/5,444.82 = 2,948.80/x
3. Step 3: Cross multiply
   3,945.25x = 5,444.82 × 2,948.80
4. Step 4: Simplify right side
   3,945.25x = 16,055,685.22
5. Step 5: Solve for x
   x = 16,055,685.22/3,945.25
6. Step 6: Final answer
   x = 4,069.62