Finding the Fourth Proportional to 3,080.97, 4,622.06 and 889.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,080.97 : 4,622.06 = 889.72 : x
2. Step 2: Convert to fraction form
   3,080.97/4,622.06 = 889.72/x
3. Step 3: Cross multiply
   3,080.97x = 4,622.06 × 889.72
4. Step 4: Simplify right side
   3,080.97x = 4,112,329.89
5. Step 5: Solve for x
   x = 4,112,329.89/3,080.97
6. Step 6: Final answer
   x = 1,334.75