Finding the Fourth Proportional to 2,304.69, 3,180.45 and 1,256.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.69 : 3,180.45 = 1,256.76 : x
2. Step 2: Convert to fraction form
   2,304.69/3,180.45 = 1,256.76/x
3. Step 3: Cross multiply
   2,304.69x = 3,180.45 × 1,256.76
4. Step 4: Simplify right side
   2,304.69x = 3,997,062.34
5. Step 5: Solve for x
   x = 3,997,062.34/2,304.69
6. Step 6: Final answer
   x = 1,734.32