Finding the Fourth Proportional to 3,739.86, 5,161.12 and 2,061.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,739.86 : 5,161.12 = 2,061.38 : x
2. Step 2: Convert to fraction form
   3,739.86/5,161.12 = 2,061.38/x
3. Step 3: Cross multiply
   3,739.86x = 5,161.12 × 2,061.38
4. Step 4: Simplify right side
   3,739.86x = 10,639,039.45
5. Step 5: Solve for x
   x = 10,639,039.45/3,739.86
6. Step 6: Final answer
   x = 2,844.77