Finding the Fourth Proportional to 2,011.94, 3,017.81 and 551.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.94 : 3,017.81 = 551.10 : x
2. Step 2: Convert to fraction form
   2,011.94/3,017.81 = 551.10/x
3. Step 3: Cross multiply
   2,011.94x = 3,017.81 × 551.10
4. Step 4: Simplify right side
   2,011.94x = 1,663,105.15
5. Step 5: Solve for x
   x = 1,663,105.15/2,011.94
6. Step 6: Final answer
   x = 826.62