Finding the Fourth Proportional to 2,171.34, 2,996.61 and 1,227.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.34 : 2,996.61 = 1,227.24 : x
2. Step 2: Convert to fraction form
   2,171.34/2,996.61 = 1,227.24/x
3. Step 3: Cross multiply
   2,171.34x = 2,996.61 × 1,227.24
4. Step 4: Simplify right side
   2,171.34x = 3,677,559.66
5. Step 5: Solve for x
   x = 3,677,559.66/2,171.34
6. Step 6: Final answer
   x = 1,693.68