Finding the Fourth Proportional to 3,992.56, 5,509.59 and 2,224.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,992.56 : 5,509.59 = 2,224.07 : x
2. Step 2: Convert to fraction form
   3,992.56/5,509.59 = 2,224.07/x
3. Step 3: Cross multiply
   3,992.56x = 5,509.59 × 2,224.07
4. Step 4: Simplify right side
   3,992.56x = 12,253,713.83
5. Step 5: Solve for x
   x = 12,253,713.83/3,992.56
6. Step 6: Final answer
   x = 3,069.14