Finding the Fourth Proportional to 3,962.04, 5,465.61 and 3,680.64

Step by Step Solution

1. Step 1: Write the proportion equation
   3,962.04 : 5,465.61 = 3,680.64 : x
2. Step 2: Convert to fraction form
   3,962.04/5,465.61 = 3,680.64/x
3. Step 3: Cross multiply
   3,962.04x = 5,465.61 × 3,680.64
4. Step 4: Simplify right side
   3,962.04x = 20,116,942.79
5. Step 5: Solve for x
   x = 20,116,942.79/3,962.04
6. Step 6: Final answer
   x = 5,077.42