Finding the Fourth Proportional to 1,171.84, 1,617.25 and 674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,171.84 : 1,617.25 = 674.50 : x
2. Step 2: Convert to fraction form
   1,171.84/1,617.25 = 674.50/x
3. Step 3: Cross multiply
   1,171.84x = 1,617.25 × 674.50
4. Step 4: Simplify right side
   1,171.84x = 1,090,827.04
5. Step 5: Solve for x
   x = 1,090,827.04/1,171.84
6. Step 6: Final answer
   x = 930.87