Finding the Fourth Proportional to 3,348.50, 5,019.37 and 2,421.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,348.50 : 5,019.37 = 2,421.79 : x
2. Step 2: Convert to fraction form
   3,348.50/5,019.37 = 2,421.79/x
3. Step 3: Cross multiply
   3,348.50x = 5,019.37 × 2,421.79
4. Step 4: Simplify right side
   3,348.50x = 12,155,841.47
5. Step 5: Solve for x
   x = 12,155,841.47/3,348.50
6. Step 6: Final answer
   x = 3,630.24