Finding the Fourth Proportional to 3,080.34, 4,620.69 and 889.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,080.34 : 4,620.69 = 889.38 : x
2. Step 2: Convert to fraction form
   3,080.34/4,620.69 = 889.38/x
3. Step 3: Cross multiply
   3,080.34x = 4,620.69 × 889.38
4. Step 4: Simplify right side
   3,080.34x = 4,109,549.27
5. Step 5: Solve for x
   x = 4,109,549.27/3,080.34
6. Step 6: Final answer
   x = 1,334.12