Finding the Fourth Proportional to 2,644.41, 3,965.94 and 889.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,644.41 : 3,965.94 = 889.14 : x
2. Step 2: Convert to fraction form
   2,644.41/3,965.94 = 889.14/x
3. Step 3: Cross multiply
   2,644.41x = 3,965.94 × 889.14
4. Step 4: Simplify right side
   2,644.41x = 3,526,275.89
5. Step 5: Solve for x
   x = 3,526,275.89/2,644.41
6. Step 6: Final answer
   x = 1,333.48