Finding the Fourth Proportional to 2,017.31, 3,022.55 and 1,235.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,017.31 : 3,022.55 = 1,235.68 : x
2. Step 2: Convert to fraction form
   2,017.31/3,022.55 = 1,235.68/x
3. Step 3: Cross multiply
   2,017.31x = 3,022.55 × 1,235.68
4. Step 4: Simplify right side
   2,017.31x = 3,734,895.48
5. Step 5: Solve for x
   x = 3,734,895.48/2,017.31
6. Step 6: Final answer
   x = 1,851.42