Finding the Fourth Proportional to 3,412.28, 5,108.46 and 2,002.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,412.28 : 5,108.46 = 2,002.43 : x
2. Step 2: Convert to fraction form
   3,412.28/5,108.46 = 2,002.43/x
3. Step 3: Cross multiply
   3,412.28x = 5,108.46 × 2,002.43
4. Step 4: Simplify right side
   3,412.28x = 10,229,308.02
5. Step 5: Solve for x
   x = 10,229,308.02/3,412.28
6. Step 6: Final answer
   x = 2,997.80