Finding the Fourth Proportional to 2,171.27, 2,996.39 and 1,227.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.27 : 2,996.39 = 1,227.22 : x
2. Step 2: Convert to fraction form
   2,171.27/2,996.39 = 1,227.22/x
3. Step 3: Cross multiply
   2,171.27x = 2,996.39 × 1,227.22
4. Step 4: Simplify right side
   2,171.27x = 3,677,225.31
5. Step 5: Solve for x
   x = 3,677,225.31/2,171.27
6. Step 6: Final answer
   x = 1,693.58