Finding the Fourth Proportional to 3,883.86, 5,826.84 and 1,286.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,883.86 : 5,826.84 = 1,286.82 : x
2. Step 2: Convert to fraction form
   3,883.86/5,826.84 = 1,286.82/x
3. Step 3: Cross multiply
   3,883.86x = 5,826.84 × 1,286.82
4. Step 4: Simplify right side
   3,883.86x = 7,498,094.25
5. Step 5: Solve for x
   x = 7,498,094.25/3,883.86
6. Step 6: Final answer
   x = 1,930.58