Finding the Fourth Proportional to 3,760.20, 5,627.88 and 3,491.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,760.20 : 5,627.88 = 3,491.28 : x
2. Step 2: Convert to fraction form
   3,760.20/5,627.88 = 3,491.28/x
3. Step 3: Cross multiply
   3,760.20x = 5,627.88 × 3,491.28
4. Step 4: Simplify right side
   3,760.20x = 19,648,504.89
5. Step 5: Solve for x
   x = 19,648,504.89/3,760.20
6. Step 6: Final answer
   x = 5,225.39