Finding the Fourth Proportional to 1,679.67, 2,317.83 and 1,016.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,679.67 : 2,317.83 = 1,016.89 : x
2. Step 2: Convert to fraction form
   1,679.67/2,317.83 = 1,016.89/x
3. Step 3: Cross multiply
   1,679.67x = 2,317.83 × 1,016.89
4. Step 4: Simplify right side
   1,679.67x = 2,356,978.15
5. Step 5: Solve for x
   x = 2,356,978.15/1,679.67
6. Step 6: Final answer
   x = 1,403.24