Finding the Fourth Proportional to 3,080.43, 4,620.69 and 889.18

Step by Step Solution

1. Step 1: Write the proportion equation
   3,080.43 : 4,620.69 = 889.18 : x
2. Step 2: Convert to fraction form
   3,080.43/4,620.69 = 889.18/x
3. Step 3: Cross multiply
   3,080.43x = 4,620.69 × 889.18
4. Step 4: Simplify right side
   3,080.43x = 4,108,620.69
5. Step 5: Solve for x
   x = 4,108,620.69/3,080.43
6. Step 6: Final answer
   x = 1,333.78