Finding the Fourth Proportional to 3,471.72, 4,789.43 and 2,212.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,471.72 : 4,789.43 = 2,212.09 : x
2. Step 2: Convert to fraction form
   3,471.72/4,789.43 = 2,212.09/x
3. Step 3: Cross multiply
   3,471.72x = 4,789.43 × 2,212.09
4. Step 4: Simplify right side
   3,471.72x = 10,594,639.15
5. Step 5: Solve for x
   x = 10,594,639.15/3,471.72
6. Step 6: Final answer
   x = 3,051.70