Finding the Fourth Proportional to 2,785.14, 3,843.37 and 1,665.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,785.14 : 3,843.37 = 1,665.86 : x
2. Step 2: Convert to fraction form
   2,785.14/3,843.37 = 1,665.86/x
3. Step 3: Cross multiply
   2,785.14x = 3,843.37 × 1,665.86
4. Step 4: Simplify right side
   2,785.14x = 6,402,488.80
5. Step 5: Solve for x
   x = 6,402,488.80/2,785.14
6. Step 6: Final answer
   x = 2,298.81