Finding the Fourth Proportional to 3,907.86, 5,833.86 and 3,771.12

Step by Step Solution

1. Step 1: Write the proportion equation
   3,907.86 : 5,833.86 = 3,771.12 : x
2. Step 2: Convert to fraction form
   3,907.86/5,833.86 = 3,771.12/x
3. Step 3: Cross multiply
   3,907.86x = 5,833.86 × 3,771.12
4. Step 4: Simplify right side
   3,907.86x = 22,000,186.12
5. Step 5: Solve for x
   x = 22,000,186.12/3,907.86
6. Step 6: Final answer
   x = 5,629.73