Finding the Fourth Proportional to 2,540.04, 3,812.46 and 1,308.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,540.04 : 3,812.46 = 1,308.30 : x
2. Step 2: Convert to fraction form
   2,540.04/3,812.46 = 1,308.30/x
3. Step 3: Cross multiply
   2,540.04x = 3,812.46 × 1,308.30
4. Step 4: Simplify right side
   2,540.04x = 4,987,841.42
5. Step 5: Solve for x
   x = 4,987,841.42/2,540.04
6. Step 6: Final answer
   x = 1,963.69