Finding the Fourth Proportional to 2,644.73, 3,964.29 and 888.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.73 : 3,964.29 = 888.06 : x
2. Step 2: Convert to fraction form
   2,644.73/3,964.29 = 888.06/x
3. Step 3: Cross multiply
   2,644.73x = 3,964.29 × 888.06
4. Step 4: Simplify right side
   2,644.73x = 3,520,527.38
5. Step 5: Solve for x
   x = 3,520,527.38/2,644.73
6. Step 6: Final answer
   x = 1,331.15