Finding the Fourth Proportional to 1,717.38, 2,557.98 and 1,681.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,717.38 : 2,557.98 = 1,681.38 : x
2. Step 2: Convert to fraction form
   1,717.38/2,557.98 = 1,681.38/x
3. Step 3: Cross multiply
   1,717.38x = 2,557.98 × 1,681.38
4. Step 4: Simplify right side
   1,717.38x = 4,300,936.41
5. Step 5: Solve for x
   x = 4,300,936.41/1,717.38
6. Step 6: Final answer
   x = 2,504.36