Finding the Fourth Proportional to 2,017.38, 2,781.14 and 1,426.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.38 : 2,781.14 = 1,426.88 : x
2. Step 2: Convert to fraction form
   2,017.38/2,781.14 = 1,426.88/x
3. Step 3: Cross multiply
   2,017.38x = 2,781.14 × 1,426.88
4. Step 4: Simplify right side
   2,017.38x = 3,968,353.04
5. Step 5: Solve for x
   x = 3,968,353.04/2,017.38
6. Step 6: Final answer
   x = 1,967.08