Finding the Fourth Proportional to 2,086.39, 2,879.46 and 1,202.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.39 : 2,879.46 = 1,202.17 : x
2. Step 2: Convert to fraction form
   2,086.39/2,879.46 = 1,202.17/x
3. Step 3: Cross multiply
   2,086.39x = 2,879.46 × 1,202.17
4. Step 4: Simplify right side
   2,086.39x = 3,461,600.43
5. Step 5: Solve for x
   x = 3,461,600.43/2,086.39
6. Step 6: Final answer
   x = 1,659.13