Finding the Fourth Proportional to 2,647.53, 3,967.25 and 1,415.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.53 : 3,967.25 = 1,415.12 : x
2. Step 2: Convert to fraction form
   2,647.53/3,967.25 = 1,415.12/x
3. Step 3: Cross multiply
   2,647.53x = 3,967.25 × 1,415.12
4. Step 4: Simplify right side
   2,647.53x = 5,614,107.91
5. Step 5: Solve for x
   x = 5,614,107.91/2,647.53
6. Step 6: Final answer
   x = 2,120.51