Finding the Fourth Proportional to 2,205.82, 3,308.12 and 889.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,205.82 : 3,308.12 = 889.56 : x
2. Step 2: Convert to fraction form
   2,205.82/3,308.12 = 889.56/x
3. Step 3: Cross multiply
   2,205.82x = 3,308.12 × 889.56
4. Step 4: Simplify right side
   2,205.82x = 2,942,771.23
5. Step 5: Solve for x
   x = 2,942,771.23/2,205.82
6. Step 6: Final answer
   x = 1,334.09