Finding the Fourth Proportional to 3,571.88, 5,356.56 and 1,072.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,571.88 : 5,356.56 = 1,072.32 : x
2. Step 2: Convert to fraction form
   3,571.88/5,356.56 = 1,072.32/x
3. Step 3: Cross multiply
   3,571.88x = 5,356.56 × 1,072.32
4. Step 4: Simplify right side
   3,571.88x = 5,743,946.42
5. Step 5: Solve for x
   x = 5,743,946.42/3,571.88
6. Step 6: Final answer
   x = 1,608.10