Finding the Fourth Proportional to 1,185.96, 1,636.50 and 662.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.96 : 1,636.50 = 662.04 : x
2. Step 2: Convert to fraction form
   1,185.96/1,636.50 = 662.04/x
3. Step 3: Cross multiply
   1,185.96x = 1,636.50 × 662.04
4. Step 4: Simplify right side
   1,185.96x = 1,083,428.46
5. Step 5: Solve for x
   x = 1,083,428.46/1,185.96
6. Step 6: Final answer
   x = 913.55