Finding the Fourth Proportional to 2,018.72, 3,013.02 and 1,969.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,018.72 : 3,013.02 = 1,969.52 : x
2. Step 2: Convert to fraction form
   2,018.72/3,013.02 = 1,969.52/x
3. Step 3: Cross multiply
   2,018.72x = 3,013.02 × 1,969.52
4. Step 4: Simplify right side
   2,018.72x = 5,934,203.15
5. Step 5: Solve for x
   x = 5,934,203.15/2,018.72
6. Step 6: Final answer
   x = 2,939.59