Finding the Fourth Proportional to 2,638.12, 3,956.72 and 882.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,638.12 : 3,956.72 = 882.95 : x
2. Step 2: Convert to fraction form
   2,638.12/3,956.72 = 882.95/x
3. Step 3: Cross multiply
   2,638.12x = 3,956.72 × 882.95
4. Step 4: Simplify right side
   2,638.12x = 3,493,573.82
5. Step 5: Solve for x
   x = 3,493,573.82/2,638.12
6. Step 6: Final answer
   x = 1,324.27