Finding the Fourth Proportional to 3,648.57, 5,472.24 and 1,308.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.57 : 5,472.24 = 1,308.17 : x
2. Step 2: Convert to fraction form
   3,648.57/5,472.24 = 1,308.17/x
3. Step 3: Cross multiply
   3,648.57x = 5,472.24 × 1,308.17
4. Step 4: Simplify right side
   3,648.57x = 7,158,620.20
5. Step 5: Solve for x
   x = 7,158,620.20/3,648.57
6. Step 6: Final answer
   x = 1,962.03