Finding the Fourth Proportional to 2,765.01, 4,147.59 and 817.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,765.01 : 4,147.59 = 817.29 : x
2. Step 2: Convert to fraction form
   2,765.01/4,147.59 = 817.29/x
3. Step 3: Cross multiply
   2,765.01x = 4,147.59 × 817.29
4. Step 4: Simplify right side
   2,765.01x = 3,389,783.83
5. Step 5: Solve for x
   x = 3,389,783.83/2,765.01
6. Step 6: Final answer
   x = 1,225.96