Finding the Fourth Proportional to 1,185.27, 1,635.69 and 654.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.27 : 1,635.69 = 654.18 : x
2. Step 2: Convert to fraction form
   1,185.27/1,635.69 = 654.18/x
3. Step 3: Cross multiply
   1,185.27x = 1,635.69 × 654.18
4. Step 4: Simplify right side
   1,185.27x = 1,070,037.32
5. Step 5: Solve for x
   x = 1,070,037.32/1,185.27
6. Step 6: Final answer
   x = 902.78