Finding the Fourth Proportional to 2,636.04, 3,956.52 and 1,338.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.04 : 3,956.52 = 1,338.42 : x
2. Step 2: Convert to fraction form
   2,636.04/3,956.52 = 1,338.42/x
3. Step 3: Cross multiply
   2,636.04x = 3,956.52 × 1,338.42
4. Step 4: Simplify right side
   2,636.04x = 5,295,485.50
5. Step 5: Solve for x
   x = 5,295,485.50/2,636.04
6. Step 6: Final answer
   x = 2,008.88