Finding the Fourth Proportional to 1,574.43, 2,171.98 and 1,448.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,574.43 : 2,171.98 = 1,448.07 : x
2. Step 2: Convert to fraction form
   1,574.43/2,171.98 = 1,448.07/x
3. Step 3: Cross multiply
   1,574.43x = 2,171.98 × 1,448.07
4. Step 4: Simplify right side
   1,574.43x = 3,145,179.08
5. Step 5: Solve for x
   x = 3,145,179.08/1,574.43
6. Step 6: Final answer
   x = 1,997.66