Finding the Fourth Proportional to 2,617.98, 3,927.33 and 769.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,617.98 : 3,927.33 = 769.22 : x
2. Step 2: Convert to fraction form
   2,617.98/3,927.33 = 769.22/x
3. Step 3: Cross multiply
   2,617.98x = 3,927.33 × 769.22
4. Step 4: Simplify right side
   2,617.98x = 3,020,980.78
5. Step 5: Solve for x
   x = 3,020,980.78/2,617.98
6. Step 6: Final answer
   x = 1,153.94