Finding the Fourth Proportional to 2,112.51, 3,163.98 and 1,017.66

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.51 : 3,163.98 = 1,017.66 : x
2. Step 2: Convert to fraction form
   2,112.51/3,163.98 = 1,017.66/x
3. Step 3: Cross multiply
   2,112.51x = 3,163.98 × 1,017.66
4. Step 4: Simplify right side
   2,112.51x = 3,219,855.89
5. Step 5: Solve for x
   x = 3,219,855.89/2,112.51
6. Step 6: Final answer
   x = 1,524.18