Finding the Fourth Proportional to 2,011.42, 3,016.86 and 550.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.42 : 3,016.86 = 550.72 : x
2. Step 2: Convert to fraction form
   2,011.42/3,016.86 = 550.72/x
3. Step 3: Cross multiply
   2,011.42x = 3,016.86 × 550.72
4. Step 4: Simplify right side
   2,011.42x = 1,661,445.14
5. Step 5: Solve for x
   x = 1,661,445.14/2,011.42
6. Step 6: Final answer
   x = 826.01