Finding the Fourth Proportional to 2,783.97, 3,841.92 and 1,665.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,783.97 : 3,841.92 = 1,665.72 : x
2. Step 2: Convert to fraction form
   2,783.97/3,841.92 = 1,665.72/x
3. Step 3: Cross multiply
   2,783.97x = 3,841.92 × 1,665.72
4. Step 4: Simplify right side
   2,783.97x = 6,399,562.98
5. Step 5: Solve for x
   x = 6,399,562.98/2,783.97
6. Step 6: Final answer
   x = 2,298.72