Finding the Fourth Proportional to 2,228.16, 3,359.16 and 2,109.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,228.16 : 3,359.16 = 2,109.09 : x
2. Step 2: Convert to fraction form
   2,228.16/3,359.16 = 2,109.09/x
3. Step 3: Cross multiply
   2,228.16x = 3,359.16 × 2,109.09
4. Step 4: Simplify right side
   2,228.16x = 7,084,770.76
5. Step 5: Solve for x
   x = 7,084,770.76/2,228.16
6. Step 6: Final answer
   x = 3,179.65