Finding the Fourth Proportional to 2,112.42, 3,167.28 and 1,016.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.42 : 3,167.28 = 1,016.76 : x
2. Step 2: Convert to fraction form
   2,112.42/3,167.28 = 1,016.76/x
3. Step 3: Cross multiply
   2,112.42x = 3,167.28 × 1,016.76
4. Step 4: Simplify right side
   2,112.42x = 3,220,363.61
5. Step 5: Solve for x
   x = 3,220,363.61/2,112.42
6. Step 6: Final answer
   x = 1,524.49