Finding the Fourth Proportional to 3,658.20, 5,054.06 and 2,398.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,658.20 : 5,054.06 = 2,398.79 : x
2. Step 2: Convert to fraction form
   3,658.20/5,054.06 = 2,398.79/x
3. Step 3: Cross multiply
   3,658.20x = 5,054.06 × 2,398.79
4. Step 4: Simplify right side
   3,658.20x = 12,123,591.32
5. Step 5: Solve for x
   x = 12,123,591.32/3,658.20
6. Step 6: Final answer
   x = 3,314.09