Finding the Fourth Proportional to 2,996.56, 4,494.72 and 805.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,996.56 : 4,494.72 = 805.20 : x
2. Step 2: Convert to fraction form
   2,996.56/4,494.72 = 805.20/x
3. Step 3: Cross multiply
   2,996.56x = 4,494.72 × 805.20
4. Step 4: Simplify right side
   2,996.56x = 3,619,148.54
5. Step 5: Solve for x
   x = 3,619,148.54/2,996.56
6. Step 6: Final answer
   x = 1,207.77