Finding the Fourth Proportional to 2,002.10, 3,009.63 and 1,992.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,002.10 : 3,009.63 = 1,992.38 : x
2. Step 2: Convert to fraction form
   2,002.10/3,009.63 = 1,992.38/x
3. Step 3: Cross multiply
   2,002.10x = 3,009.63 × 1,992.38
4. Step 4: Simplify right side
   2,002.10x = 5,996,326.62
5. Step 5: Solve for x
   x = 5,996,326.62/2,002.10
6. Step 6: Final answer
   x = 2,995.02