Finding the Fourth Proportional to 2,786.31, 3,845.46 and 1,667.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786.31 : 3,845.46 = 1,667.85 : x
2. Step 2: Convert to fraction form
   2,786.31/3,845.46 = 1,667.85/x
3. Step 3: Cross multiply
   2,786.31x = 3,845.46 × 1,667.85
4. Step 4: Simplify right side
   2,786.31x = 6,413,650.46
5. Step 5: Solve for x
   x = 6,413,650.46/2,786.31
6. Step 6: Final answer
   x = 2,301.84