Finding the Fourth Proportional to 2,040.12, 3,060.72 and 1,260.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,040.12 : 3,060.72 = 1,260.72 : x
2. Step 2: Convert to fraction form
   2,040.12/3,060.72 = 1,260.72/x
3. Step 3: Cross multiply
   2,040.12x = 3,060.72 × 1,260.72
4. Step 4: Simplify right side
   2,040.12x = 3,858,710.92
5. Step 5: Solve for x
   x = 3,858,710.92/2,040.12
6. Step 6: Final answer
   x = 1,891.41