Finding the Fourth Proportional to 3,396.72, 5,090.94 and 2,949.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,396.72 : 5,090.94 = 2,949.72 : x
2. Step 2: Convert to fraction form
   3,396.72/5,090.94 = 2,949.72/x
3. Step 3: Cross multiply
   3,396.72x = 5,090.94 × 2,949.72
4. Step 4: Simplify right side
   3,396.72x = 15,016,847.54
5. Step 5: Solve for x
   x = 15,016,847.54/3,396.72
6. Step 6: Final answer
   x = 4,420.98