Finding the Fourth Proportional to 3,728.24, 5,144.56 and 2,156.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,728.24 : 5,144.56 = 2,156.28 : x
2. Step 2: Convert to fraction form
   3,728.24/5,144.56 = 2,156.28/x
3. Step 3: Cross multiply
   3,728.24x = 5,144.56 × 2,156.28
4. Step 4: Simplify right side
   3,728.24x = 11,093,111.84
5. Step 5: Solve for x
   x = 11,093,111.84/3,728.24
6. Step 6: Final answer
   x = 2,975.43