Finding the Fourth Proportional to 1,997.43, 2,757.27 and 1,251.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.43 : 2,757.27 = 1,251.21 : x
2. Step 2: Convert to fraction form
   1,997.43/2,757.27 = 1,251.21/x
3. Step 3: Cross multiply
   1,997.43x = 2,757.27 × 1,251.21
4. Step 4: Simplify right side
   1,997.43x = 3,449,938.83
5. Step 5: Solve for x
   x = 3,449,938.83/1,997.43
6. Step 6: Final answer
   x = 1,727.19