Finding the Fourth Proportional to 2,304.50, 3,180.20 and 1,256.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.50 : 3,180.20 = 1,256.56 : x
2. Step 2: Convert to fraction form
   2,304.50/3,180.20 = 1,256.56/x
3. Step 3: Cross multiply
   2,304.50x = 3,180.20 × 1,256.56
4. Step 4: Simplify right side
   2,304.50x = 3,996,097.88
5. Step 5: Solve for x
   x = 3,996,097.88/2,304.50
6. Step 6: Final answer
   x = 1,734.04