Finding the Fourth Proportional to 3,886.61, 5,363.55 and 2,293.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,886.61 : 5,363.55 = 2,293.29 : x
2. Step 2: Convert to fraction form
   3,886.61/5,363.55 = 2,293.29/x
3. Step 3: Cross multiply
   3,886.61x = 5,363.55 × 2,293.29
4. Step 4: Simplify right side
   3,886.61x = 12,300,175.58
5. Step 5: Solve for x
   x = 12,300,175.58/3,886.61
6. Step 6: Final answer
   x = 3,164.76