Finding the Fourth Proportional to 3,399.89, 5,101.86 and 1,839.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,399.89 : 5,101.86 = 1,839.86 : x
2. Step 2: Convert to fraction form
   3,399.89/5,101.86 = 1,839.86/x
3. Step 3: Cross multiply
   3,399.89x = 5,101.86 × 1,839.86
4. Step 4: Simplify right side
   3,399.89x = 9,386,698.94
5. Step 5: Solve for x
   x = 9,386,698.94/3,399.89
6. Step 6: Final answer
   x = 2,760.89