Finding the Fourth Proportional to 2,494.81, 3,738.73 and 1,260.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,494.81 : 3,738.73 = 1,260.78 : x
2. Step 2: Convert to fraction form
   2,494.81/3,738.73 = 1,260.78/x
3. Step 3: Cross multiply
   2,494.81x = 3,738.73 × 1,260.78
4. Step 4: Simplify right side
   2,494.81x = 4,713,706.72
5. Step 5: Solve for x
   x = 4,713,706.72/2,494.81
6. Step 6: Final answer
   x = 1,889.41