Finding the Fourth Proportional to 2,112.30, 3,167.55 and 1,017

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.30 : 3,167.55 = 1,017 : x
2. Step 2: Convert to fraction form
   2,112.30/3,167.55 = 1,017/x
3. Step 3: Cross multiply
   2,112.30x = 3,167.55 × 1,017
4. Step 4: Simplify right side
   2,112.30x = 3,221,398.35
5. Step 5: Solve for x
   x = 3,221,398.35/2,112.30
6. Step 6: Final answer
   x = 1,525.07