Finding the Fourth Proportional to 3,886.18, 5,827.86 and 1,694.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,886.18 : 5,827.86 = 1,694.38 : x
2. Step 2: Convert to fraction form
   3,886.18/5,827.86 = 1,694.38/x
3. Step 3: Cross multiply
   3,886.18x = 5,827.86 × 1,694.38
4. Step 4: Simplify right side
   3,886.18x = 9,874,609.43
5. Step 5: Solve for x
   x = 9,874,609.43/3,886.18
6. Step 6: Final answer
   x = 2,540.96