Finding the Fourth Proportional to 2,915.24, 4,372.91 and 1,067.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,915.24 : 4,372.91 = 1,067.72 : x
2. Step 2: Convert to fraction form
   2,915.24/4,372.91 = 1,067.72/x
3. Step 3: Cross multiply
   2,915.24x = 4,372.91 × 1,067.72
4. Step 4: Simplify right side
   2,915.24x = 4,669,043.47
5. Step 5: Solve for x
   x = 4,669,043.47/2,915.24
6. Step 6: Final answer
   x = 1,601.60