Finding the Fourth Proportional to 2,584.31, 3,851.96 and 2,515.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,584.31 : 3,851.96 = 2,515.05 : x
2. Step 2: Convert to fraction form
   2,584.31/3,851.96 = 2,515.05/x
3. Step 3: Cross multiply
   2,584.31x = 3,851.96 × 2,515.05
4. Step 4: Simplify right side
   2,584.31x = 9,687,859.42
5. Step 5: Solve for x
   x = 9,687,859.42/2,584.31
6. Step 6: Final answer
   x = 3,748.73