Finding the Fourth Proportional to 3,387.83, 4,674.71 and 2,209.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,387.83 : 4,674.71 = 2,209.28 : x
2. Step 2: Convert to fraction form
   3,387.83/4,674.71 = 2,209.28/x
3. Step 3: Cross multiply
   3,387.83x = 4,674.71 × 2,209.28
4. Step 4: Simplify right side
   3,387.83x = 10,327,725.46
5. Step 5: Solve for x
   x = 10,327,725.46/3,387.83
6. Step 6: Final answer
   x = 3,048.48