Finding the Fourth Proportional to 2,872.92, 4,309.59 and 926.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,872.92 : 4,309.59 = 926.52 : x
2. Step 2: Convert to fraction form
   2,872.92/4,309.59 = 926.52/x
3. Step 3: Cross multiply
   2,872.92x = 4,309.59 × 926.52
4. Step 4: Simplify right side
   2,872.92x = 3,992,921.33
5. Step 5: Solve for x
   x = 3,992,921.33/2,872.92
6. Step 6: Final answer
   x = 1,389.85