Finding the Fourth Proportional to 2,607.24, 3,929.16 and 2,443.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,607.24 : 3,929.16 = 2,443.20 : x
2. Step 2: Convert to fraction form
   2,607.24/3,929.16 = 2,443.20/x
3. Step 3: Cross multiply
   2,607.24x = 3,929.16 × 2,443.20
4. Step 4: Simplify right side
   2,607.24x = 9,599,723.71
5. Step 5: Solve for x
   x = 9,599,723.71/2,607.24
6. Step 6: Final answer
   x = 3,681.95