Finding the Fourth Proportional to 2,014.18, 3,020.69 and 553.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,014.18 : 3,020.69 = 553.38 : x
2. Step 2: Convert to fraction form
   2,014.18/3,020.69 = 553.38/x
3. Step 3: Cross multiply
   2,014.18x = 3,020.69 × 553.38
4. Step 4: Simplify right side
   2,014.18x = 1,671,589.43
5. Step 5: Solve for x
   x = 1,671,589.43/2,014.18
6. Step 6: Final answer
   x = 829.91