Finding the Fourth Proportional to 3,907.58, 5,846.78 and 3,863.84

Step by Step Solution

1. Step 1: Write the proportion equation
   3,907.58 : 5,846.78 = 3,863.84 : x
2. Step 2: Convert to fraction form
   3,907.58/5,846.78 = 3,863.84/x
3. Step 3: Cross multiply
   3,907.58x = 5,846.78 × 3,863.84
4. Step 4: Simplify right side
   3,907.58x = 22,591,002.86
5. Step 5: Solve for x
   x = 22,591,002.86/3,907.58
6. Step 6: Final answer
   x = 5,781.34