Finding the Fourth Proportional to 2,002.21, 3,003.31 and 1,659.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.21 : 3,003.31 = 1,659.49 : x
2. Step 2: Convert to fraction form
   2,002.21/3,003.31 = 1,659.49/x
3. Step 3: Cross multiply
   2,002.21x = 3,003.31 × 1,659.49
4. Step 4: Simplify right side
   2,002.21x = 4,983,962.91
5. Step 5: Solve for x
   x = 4,983,962.91/2,002.21
6. Step 6: Final answer
   x = 2,489.23