Finding the Fourth Proportional to 1,504.80, 2,258.72 and 889.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,504.80 : 2,258.72 = 889.12 : x
2. Step 2: Convert to fraction form
   1,504.80/2,258.72 = 889.12/x
3. Step 3: Cross multiply
   1,504.80x = 2,258.72 × 889.12
4. Step 4: Simplify right side
   1,504.80x = 2,008,273.13
5. Step 5: Solve for x
   x = 2,008,273.13/1,504.80
6. Step 6: Final answer
   x = 1,334.58