Finding the Fourth Proportional to 2,379.80, 3,282.60 and 1,540.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,379.80 : 3,282.60 = 1,540.16 : x
2. Step 2: Convert to fraction form
   2,379.80/3,282.60 = 1,540.16/x
3. Step 3: Cross multiply
   2,379.80x = 3,282.60 × 1,540.16
4. Step 4: Simplify right side
   2,379.80x = 5,055,729.22
5. Step 5: Solve for x
   x = 5,055,729.22/2,379.80
6. Step 6: Final answer
   x = 2,124.43