Finding the Fourth Proportional to 2,016.63, 3,005.17 and 1,999.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.63 : 3,005.17 = 1,999.62 : x
2. Step 2: Convert to fraction form
   2,016.63/3,005.17 = 1,999.62/x
3. Step 3: Cross multiply
   2,016.63x = 3,005.17 × 1,999.62
4. Step 4: Simplify right side
   2,016.63x = 6,009,193.04
5. Step 5: Solve for x
   x = 6,009,193.04/2,016.63
6. Step 6: Final answer
   x = 2,979.82