Finding the Fourth Proportional to 2,449.78, 3,673.61 and 889.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.78 : 3,673.61 = 889.27 : x
2. Step 2: Convert to fraction form
   2,449.78/3,673.61 = 889.27/x
3. Step 3: Cross multiply
   2,449.78x = 3,673.61 × 889.27
4. Step 4: Simplify right side
   2,449.78x = 3,266,808.35
5. Step 5: Solve for x
   x = 3,266,808.35/2,449.78
6. Step 6: Final answer
   x = 1,333.51