Finding the Fourth Proportional to 3,944.60, 5,442.78 and 2,372.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,944.60 : 5,442.78 = 2,372.79 : x
2. Step 2: Convert to fraction form
   3,944.60/5,442.78 = 2,372.79/x
3. Step 3: Cross multiply
   3,944.60x = 5,442.78 × 2,372.79
4. Step 4: Simplify right side
   3,944.60x = 12,914,573.96
5. Step 5: Solve for x
   x = 12,914,573.96/3,944.60
6. Step 6: Final answer
   x = 3,273.99