Finding the Fourth Proportional to 2,644.31, 3,967.79 and 1,767.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.31 : 3,967.79 = 1,767.29 : x
2. Step 2: Convert to fraction form
   2,644.31/3,967.79 = 1,767.29/x
3. Step 3: Cross multiply
   2,644.31x = 3,967.79 × 1,767.29
4. Step 4: Simplify right side
   2,644.31x = 7,012,206.91
5. Step 5: Solve for x
   x = 7,012,206.91/2,644.31
6. Step 6: Final answer
   x = 2,651.81