Finding the Fourth Proportional to 1,997.27, 2,754.09 and 1,399.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.27 : 2,754.09 = 1,399.58 : x
2. Step 2: Convert to fraction form
   1,997.27/2,754.09 = 1,399.58/x
3. Step 3: Cross multiply
   1,997.27x = 2,754.09 × 1,399.58
4. Step 4: Simplify right side
   1,997.27x = 3,854,555.51
5. Step 5: Solve for x
   x = 3,854,555.51/1,997.27
6. Step 6: Final answer
   x = 1,929.91