Finding the Fourth Proportional to 1,647.25, 2,272.02 and 983.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.25 : 2,272.02 = 983.59 : x
2. Step 2: Convert to fraction form
   1,647.25/2,272.02 = 983.59/x
3. Step 3: Cross multiply
   1,647.25x = 2,272.02 × 983.59
4. Step 4: Simplify right side
   1,647.25x = 2,234,736.15
5. Step 5: Solve for x
   x = 2,234,736.15/1,647.25
6. Step 6: Final answer
   x = 1,356.65