Finding the Fourth Proportional to 2,017.98, 3,028.80 and 1,031.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.98 : 3,028.80 = 1,031.46 : x
2. Step 2: Convert to fraction form
   2,017.98/3,028.80 = 1,031.46/x
3. Step 3: Cross multiply
   2,017.98x = 3,028.80 × 1,031.46
4. Step 4: Simplify right side
   2,017.98x = 3,124,086.05
5. Step 5: Solve for x
   x = 3,124,086.05/2,017.98
6. Step 6: Final answer
   x = 1,548.13