Finding the Fourth Proportional to 1,084.25, 1,496.27 and 618.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.25 : 1,496.27 = 618.50 : x
2. Step 2: Convert to fraction form
   1,084.25/1,496.27 = 618.50/x
3. Step 3: Cross multiply
   1,084.25x = 1,496.27 × 618.50
4. Step 4: Simplify right side
   1,084.25x = 925,443.00
5. Step 5: Solve for x
   x = 925,443.00/1,084.25
6. Step 6: Final answer
   x = 853.53