Finding the Fourth Proportional to 1,151.76, 1,589.31 and 673.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.76 : 1,589.31 = 673.23 : x
2. Step 2: Convert to fraction form
   1,151.76/1,589.31 = 673.23/x
3. Step 3: Cross multiply
   1,151.76x = 1,589.31 × 673.23
4. Step 4: Simplify right side
   1,151.76x = 1,069,971.17
5. Step 5: Solve for x
   x = 1,069,971.17/1,151.76
6. Step 6: Final answer
   x = 928.99