Finding the Fourth Proportional to 7,327.83, 10,989.42 and 2,647.22

Step by Step Solution

1. Step 1: Write the proportion equation
   7,327.83 : 10,989.42 = 2,647.22 : x
2. Step 2: Convert to fraction form
   7,327.83/10,989.42 = 2,647.22/x
3. Step 3: Cross multiply
   7,327.83x = 10,989.42 × 2,647.22
4. Step 4: Simplify right side
   7,327.83x = 29,091,408.79
5. Step 5: Solve for x
   x = 29,091,408.79/7,327.83
6. Step 6: Final answer
   x = 3,969.99