Finding the Fourth Proportional to 3,081.35, 4,621.17 and 889.49

Step by Step Solution

1. Step 1: Write the proportion equation
   3,081.35 : 4,621.17 = 889.49 : x
2. Step 2: Convert to fraction form
   3,081.35/4,621.17 = 889.49/x
3. Step 3: Cross multiply
   3,081.35x = 4,621.17 × 889.49
4. Step 4: Simplify right side
   3,081.35x = 4,110,484.50
5. Step 5: Solve for x
   x = 4,110,484.50/3,081.35
6. Step 6: Final answer
   x = 1,333.99