Finding the Fourth Proportional to 2,112.33, 3,163.98 and 1,715.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,112.33 : 3,163.98 = 1,715.22 : x
2. Step 2: Convert to fraction form
   2,112.33/3,163.98 = 1,715.22/x
3. Step 3: Cross multiply
   2,112.33x = 3,163.98 × 1,715.22
4. Step 4: Simplify right side
   2,112.33x = 5,426,921.78
5. Step 5: Solve for x
   x = 5,426,921.78/2,112.33
6. Step 6: Final answer
   x = 2,569.16