Finding the Fourth Proportional to 2,304.78, 3,180.57 and 1,256.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.78 : 3,180.57 = 1,256.82 : x
2. Step 2: Convert to fraction form
   2,304.78/3,180.57 = 1,256.82/x
3. Step 3: Cross multiply
   2,304.78x = 3,180.57 × 1,256.82
4. Step 4: Simplify right side
   2,304.78x = 3,997,403.99
5. Step 5: Solve for x
   x = 3,997,403.99/2,304.78
6. Step 6: Final answer
   x = 1,734.40