Finding the Fourth Proportional to 3,886.32, 5,363.56 and 2,393.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,886.32 : 5,363.56 = 2,393.94 : x
2. Step 2: Convert to fraction form
   3,886.32/5,363.56 = 2,393.94/x
3. Step 3: Cross multiply
   3,886.32x = 5,363.56 × 2,393.94
4. Step 4: Simplify right side
   3,886.32x = 12,840,040.83
5. Step 5: Solve for x
   x = 12,840,040.83/3,886.32
6. Step 6: Final answer
   x = 3,303.91