Finding the Fourth Proportional to 2,780.18, 3,834.83 and 1,660.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,780.18 : 3,834.83 = 1,660.25 : x
2. Step 2: Convert to fraction form
   2,780.18/3,834.83 = 1,660.25/x
3. Step 3: Cross multiply
   2,780.18x = 3,834.83 × 1,660.25
4. Step 4: Simplify right side
   2,780.18x = 6,366,761.48
5. Step 5: Solve for x
   x = 6,366,761.48/2,780.18
6. Step 6: Final answer
   x = 2,290.05