Finding the Fourth Proportional to 2,304.91, 3,180.78 and 1,256.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.91 : 3,180.78 = 1,256.98 : x
2. Step 2: Convert to fraction form
   2,304.91/3,180.78 = 1,256.98/x
3. Step 3: Cross multiply
   2,304.91x = 3,180.78 × 1,256.98
4. Step 4: Simplify right side
   2,304.91x = 3,998,176.84
5. Step 5: Solve for x
   x = 3,998,176.84/2,304.91
6. Step 6: Final answer
   x = 1,734.63