Finding the Fourth Proportional to 2,622.54, 3,932.99 and 867.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,622.54 : 3,932.99 = 867.15 : x
2. Step 2: Convert to fraction form
   2,622.54/3,932.99 = 867.15/x
3. Step 3: Cross multiply
   2,622.54x = 3,932.99 × 867.15
4. Step 4: Simplify right side
   2,622.54x = 3,410,492.09
5. Step 5: Solve for x
   x = 3,410,492.09/2,622.54
6. Step 6: Final answer
   x = 1,300.45