Finding the Fourth Proportional to 1,605.50, 2,216.34 and 1,016.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,605.50 : 2,216.34 = 1,016.84 : x
2. Step 2: Convert to fraction form
   1,605.50/2,216.34 = 1,016.84/x
3. Step 3: Cross multiply
   1,605.50x = 2,216.34 × 1,016.84
4. Step 4: Simplify right side
   1,605.50x = 2,253,653.38
5. Step 5: Solve for x
   x = 2,253,653.38/1,605.50
6. Step 6: Final answer
   x = 1,403.70