Finding the Fourth Proportional to 2,756.28, 4,133.98 and 808.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,756.28 : 4,133.98 = 808.03 : x
2. Step 2: Convert to fraction form
   2,756.28/4,133.98 = 808.03/x
3. Step 3: Cross multiply
   2,756.28x = 4,133.98 × 808.03
4. Step 4: Simplify right side
   2,756.28x = 3,340,379.86
5. Step 5: Solve for x
   x = 3,340,379.86/2,756.28
6. Step 6: Final answer
   x = 1,211.92