Finding the Fourth Proportional to 2,016.36, 3,024.81 and 1,980.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.36 : 3,024.81 = 1,980.18 : x
2. Step 2: Convert to fraction form
   2,016.36/3,024.81 = 1,980.18/x
3. Step 3: Cross multiply
   2,016.36x = 3,024.81 × 1,980.18
4. Step 4: Simplify right side
   2,016.36x = 5,989,668.27
5. Step 5: Solve for x
   x = 5,989,668.27/2,016.36
6. Step 6: Final answer
   x = 2,970.54