Finding the Fourth Proportional to 2,208.28, 3,309.18 and 1,111.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,208.28 : 3,309.18 = 1,111.14 : x
2. Step 2: Convert to fraction form
   2,208.28/3,309.18 = 1,111.14/x
3. Step 3: Cross multiply
   2,208.28x = 3,309.18 × 1,111.14
4. Step 4: Simplify right side
   2,208.28x = 3,676,962.27
5. Step 5: Solve for x
   x = 3,676,962.27/2,208.28
6. Step 6: Final answer
   x = 1,665.08