Finding the Fourth Proportional to 2,453.55, 3,386.25 and 1,571.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,453.55 : 3,386.25 = 1,571.91 : x
2. Step 2: Convert to fraction form
   2,453.55/3,386.25 = 1,571.91/x
3. Step 3: Cross multiply
   2,453.55x = 3,386.25 × 1,571.91
4. Step 4: Simplify right side
   2,453.55x = 5,322,880.24
5. Step 5: Solve for x
   x = 5,322,880.24/2,453.55
6. Step 6: Final answer
   x = 2,169.46