Finding the Fourth Proportional to 3,908.66, 5,393.82 and 2,230.16

Step by Step Solution

1. Step 1: Write the proportion equation
   3,908.66 : 5,393.82 = 2,230.16 : x
2. Step 2: Convert to fraction form
   3,908.66/5,393.82 = 2,230.16/x
3. Step 3: Cross multiply
   3,908.66x = 5,393.82 × 2,230.16
4. Step 4: Simplify right side
   3,908.66x = 12,029,081.61
5. Step 5: Solve for x
   x = 12,029,081.61/3,908.66
6. Step 6: Final answer
   x = 3,077.55