Finding the Fourth Proportional to 1,151.89, 1,589.63 and 654.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.89 : 1,589.63 = 654.54 : x
2. Step 2: Convert to fraction form
   1,151.89/1,589.63 = 654.54/x
3. Step 3: Cross multiply
   1,151.89x = 1,589.63 × 654.54
4. Step 4: Simplify right side
   1,151.89x = 1,040,477.12
5. Step 5: Solve for x
   x = 1,040,477.12/1,151.89
6. Step 6: Final answer
   x = 903.28