Finding the Fourth Proportional to 2,013.38, 3,020.18 and 697.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.38 : 3,020.18 = 697.20 : x
2. Step 2: Convert to fraction form
   2,013.38/3,020.18 = 697.20/x
3. Step 3: Cross multiply
   2,013.38x = 3,020.18 × 697.20
4. Step 4: Simplify right side
   2,013.38x = 2,105,666.01
5. Step 5: Solve for x
   x = 2,105,666.01/2,013.38
6. Step 6: Final answer
   x = 1,045.84