Finding the Fourth Proportional to 3,800.89, 5,696.67 and 2,158.81

Step by Step Solution

1. Step 1: Write the proportion equation
   3,800.89 : 5,696.67 = 2,158.81 : x
2. Step 2: Convert to fraction form
   3,800.89/5,696.67 = 2,158.81/x
3. Step 3: Cross multiply
   3,800.89x = 5,696.67 × 2,158.81
4. Step 4: Simplify right side
   3,800.89x = 12,298,042.40
5. Step 5: Solve for x
   x = 12,298,042.40/3,800.89
6. Step 6: Final answer
   x = 3,235.57