Finding the Fourth Proportional to 1,571.27, 2,163.42 and 1,334.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,571.27 : 2,163.42 = 1,334.72 : x
2. Step 2: Convert to fraction form
   1,571.27/2,163.42 = 1,334.72/x
3. Step 3: Cross multiply
   1,571.27x = 2,163.42 × 1,334.72
4. Step 4: Simplify right side
   1,571.27x = 2,887,559.94
5. Step 5: Solve for x
   x = 2,887,559.94/1,571.27
6. Step 6: Final answer
   x = 1,837.72