Finding the Fourth Proportional to 2,304.96, 3,180.83 and 1,257

Step by Step Solution

1. Step 1: Write the proportion equation
   2,304.96 : 3,180.83 = 1,257 : x
2. Step 2: Convert to fraction form
   2,304.96/3,180.83 = 1,257/x
3. Step 3: Cross multiply
   2,304.96x = 3,180.83 × 1,257
4. Step 4: Simplify right side
   2,304.96x = 3,998,297.03
5. Step 5: Solve for x
   x = 3,998,297.03/2,304.96
6. Step 6: Final answer
   x = 1,734.65