Finding the Fourth Proportional to 3,957.79, 5,459.74 and 3,676.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,957.79 : 5,459.74 = 3,676.38 : x
2. Step 2: Convert to fraction form
   3,957.79/5,459.74 = 3,676.38/x
3. Step 3: Cross multiply
   3,957.79x = 5,459.74 × 3,676.38
4. Step 4: Simplify right side
   3,957.79x = 20,072,078.94
5. Step 5: Solve for x
   x = 20,072,078.94/3,957.79
6. Step 6: Final answer
   x = 5,071.54