Finding the Fourth Proportional to 2,304.76, 3,180.56 and 1,256.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.76 : 3,180.56 = 1,256.88 : x
2. Step 2: Convert to fraction form
   2,304.76/3,180.56 = 1,256.88/x
3. Step 3: Cross multiply
   2,304.76x = 3,180.56 × 1,256.88
4. Step 4: Simplify right side
   2,304.76x = 3,997,582.25
5. Step 5: Solve for x
   x = 3,997,582.25/2,304.76
6. Step 6: Final answer
   x = 1,734.49