Finding the Fourth Proportional to 2,011.62, 3,017.42 and 550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.62 : 3,017.42 = 550.72 : x
2. Step 2: Convert to fraction form
   2,011.62/3,017.42 = 550.72/x
3. Step 3: Cross multiply
   2,011.62x = 3,017.42 × 550.72
4. Step 4: Simplify right side
   2,011.62x = 1,661,753.54
5. Step 5: Solve for x
   x = 1,661,753.54/2,011.62
6. Step 6: Final answer
   x = 826.08