Finding the Fourth Proportional to 2,016.77, 3,019.01 and 1,623.11

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.77 : 3,019.01 = 1,623.11 : x
2. Step 2: Convert to fraction form
   2,016.77/3,019.01 = 1,623.11/x
3. Step 3: Cross multiply
   2,016.77x = 3,019.01 × 1,623.11
4. Step 4: Simplify right side
   2,016.77x = 4,900,185.32
5. Step 5: Solve for x
   x = 4,900,185.32/2,016.77
6. Step 6: Final answer
   x = 2,429.72