Finding the Fourth Proportional to 2,455.31, 3,680.89 and 1,067.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,455.31 : 3,680.89 = 1,067.60 : x
2. Step 2: Convert to fraction form
   2,455.31/3,680.89 = 1,067.60/x
3. Step 3: Cross multiply
   2,455.31x = 3,680.89 × 1,067.60
4. Step 4: Simplify right side
   2,455.31x = 3,929,718.16
5. Step 5: Solve for x
   x = 3,929,718.16/2,455.31
6. Step 6: Final answer
   x = 1,600.50