Finding the Fourth Proportional to 3,796.86, 5,239.71 and 2,140.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,796.86 : 5,239.71 = 2,140.86 : x
2. Step 2: Convert to fraction form
   3,796.86/5,239.71 = 2,140.86/x
3. Step 3: Cross multiply
   3,796.86x = 5,239.71 × 2,140.86
4. Step 4: Simplify right side
   3,796.86x = 11,217,485.55
5. Step 5: Solve for x
   x = 11,217,485.55/3,796.86
6. Step 6: Final answer
   x = 2,954.41