Finding the Fourth Proportional to 2,013.02, 3,019.57 and 552.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,013.02 : 3,019.57 = 552.21 : x
2. Step 2: Convert to fraction form
   2,013.02/3,019.57 = 552.21/x
3. Step 3: Cross multiply
   2,013.02x = 3,019.57 × 552.21
4. Step 4: Simplify right side
   2,013.02x = 1,667,436.75
5. Step 5: Solve for x
   x = 1,667,436.75/2,013.02
6. Step 6: Final answer
   x = 828.33