Finding the Fourth Proportional to 2,783.56, 3,839.46 and 1,790.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.56 : 3,839.46 = 1,790.09 : x
2. Step 2: Convert to fraction form
   2,783.56/3,839.46 = 1,790.09/x
3. Step 3: Cross multiply
   2,783.56x = 3,839.46 × 1,790.09
4. Step 4: Simplify right side
   2,783.56x = 6,872,978.95
5. Step 5: Solve for x
   x = 6,872,978.95/2,783.56
6. Step 6: Final answer
   x = 2,469.14