Finding the Fourth Proportional to 1,171.16, 1,616.25 and 673.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.16 : 1,616.25 = 673.82 : x
2. Step 2: Convert to fraction form
   1,171.16/1,616.25 = 673.82/x
3. Step 3: Cross multiply
   1,171.16x = 1,616.25 × 673.82
4. Step 4: Simplify right side
   1,171.16x = 1,089,062.08
5. Step 5: Solve for x
   x = 1,089,062.08/1,171.16
6. Step 6: Final answer
   x = 929.90