Finding the Fourth Proportional to 2,412.47, 3,329.78 and 1,571.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.47 : 3,329.78 = 1,571.72 : x
2. Step 2: Convert to fraction form
   2,412.47/3,329.78 = 1,571.72/x
3. Step 3: Cross multiply
   2,412.47x = 3,329.78 × 1,571.72
4. Step 4: Simplify right side
   2,412.47x = 5,233,457.31
5. Step 5: Solve for x
   x = 5,233,457.31/2,412.47
6. Step 6: Final answer
   x = 2,169.33