Finding the Fourth Proportional to 2,086.32, 2,879.64 and 1,301.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086.32 : 2,879.64 = 1,301.28 : x
2. Step 2: Convert to fraction form
   2,086.32/2,879.64 = 1,301.28/x
3. Step 3: Cross multiply
   2,086.32x = 2,879.64 × 1,301.28
4. Step 4: Simplify right side
   2,086.32x = 3,747,217.94
5. Step 5: Solve for x
   x = 3,747,217.94/2,086.32
6. Step 6: Final answer
   x = 1,796.09