Finding the Fourth Proportional to 2,086.76, 2,879.52 and 1,202.60

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.76 : 2,879.52 = 1,202.60 : x
2. Step 2: Convert to fraction form
   2,086.76/2,879.52 = 1,202.60/x
3. Step 3: Cross multiply
   2,086.76x = 2,879.52 × 1,202.60
4. Step 4: Simplify right side
   2,086.76x = 3,462,910.75
5. Step 5: Solve for x
   x = 3,462,910.75/2,086.76
6. Step 6: Final answer
   x = 1,659.47