Finding the Fourth Proportional to 1,171.34, 1,616.61 and 673.97

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.34 : 1,616.61 = 673.97 : x
2. Step 2: Convert to fraction form
   1,171.34/1,616.61 = 673.97/x
3. Step 3: Cross multiply
   1,171.34x = 1,616.61 × 673.97
4. Step 4: Simplify right side
   1,171.34x = 1,089,535.19
5. Step 5: Solve for x
   x = 1,089,535.19/1,171.34
6. Step 6: Final answer
   x = 930.17