Finding the Fourth Proportional to 2,304.80, 3,180.58 and 1,256.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.80 : 3,180.58 = 1,256.86 : x
2. Step 2: Convert to fraction form
   2,304.80/3,180.58 = 1,256.86/x
3. Step 3: Cross multiply
   2,304.80x = 3,180.58 × 1,256.86
4. Step 4: Simplify right side
   2,304.80x = 3,997,543.78
5. Step 5: Solve for x
   x = 3,997,543.78/2,304.80
6. Step 6: Final answer
   x = 1,734.44