Finding the Fourth Proportional to 2,212.72, 3,322.82 and 2,124.43

Step by Step Solution

1. Step 1: Write the proportion equation
   2,212.72 : 3,322.82 = 2,124.43 : x
2. Step 2: Convert to fraction form
   2,212.72/3,322.82 = 2,124.43/x
3. Step 3: Cross multiply
   2,212.72x = 3,322.82 × 2,124.43
4. Step 4: Simplify right side
   2,212.72x = 7,059,095.50
5. Step 5: Solve for x
   x = 7,059,095.50/2,212.72
6. Step 6: Final answer
   x = 3,190.24