Finding the Fourth Proportional to 2,072.24, 2,851.56 and 2,017.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072.24 : 2,851.56 = 2,017.76 : x
2. Step 2: Convert to fraction form
   2,072.24/2,851.56 = 2,017.76/x
3. Step 3: Cross multiply
   2,072.24x = 2,851.56 × 2,017.76
4. Step 4: Simplify right side
   2,072.24x = 5,753,763.71
5. Step 5: Solve for x
   x = 5,753,763.71/2,072.24
6. Step 6: Final answer
   x = 2,776.59