Finding the Fourth Proportional to 1,172.49, 1,617.98 and 675.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,172.49 : 1,617.98 = 675.02 : x
2. Step 2: Convert to fraction form
   1,172.49/1,617.98 = 675.02/x
3. Step 3: Cross multiply
   1,172.49x = 1,617.98 × 675.02
4. Step 4: Simplify right side
   1,172.49x = 1,092,172.06
5. Step 5: Solve for x
   x = 1,092,172.06/1,172.49
6. Step 6: Final answer
   x = 931.50