Finding the Fourth Proportional to 2,013.98, 3,020.49 and 552.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.98 : 3,020.49 = 552.78 : x
2. Step 2: Convert to fraction form
   2,013.98/3,020.49 = 552.78/x
3. Step 3: Cross multiply
   2,013.98x = 3,020.49 × 552.78
4. Step 4: Simplify right side
   2,013.98x = 1,669,666.46
5. Step 5: Solve for x
   x = 1,669,666.46/2,013.98
6. Step 6: Final answer
   x = 829.04