Finding the Fourth Proportional to 3,840.72, 5,759.64 and 3,028.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,840.72 : 5,759.64 = 3,028.56 : x
2. Step 2: Convert to fraction form
   3,840.72/5,759.64 = 3,028.56/x
3. Step 3: Cross multiply
   3,840.72x = 5,759.64 × 3,028.56
4. Step 4: Simplify right side
   3,840.72x = 17,443,415.32
5. Step 5: Solve for x
   x = 17,443,415.32/3,840.72
6. Step 6: Final answer
   x = 4,541.70