Finding the Fourth Proportional to 2,012.29, 2,776.25 and 1,266.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,012.29 : 2,776.25 = 1,266.30 : x
2. Step 2: Convert to fraction form
   2,012.29/2,776.25 = 1,266.30/x
3. Step 3: Cross multiply
   2,012.29x = 2,776.25 × 1,266.30
4. Step 4: Simplify right side
   2,012.29x = 3,515,568.54
5. Step 5: Solve for x
   x = 3,515,568.54/2,012.29
6. Step 6: Final answer
   x = 1,747.05