Finding the Fourth Proportional to 5,392.50, 8,086.71 and 1,881.60

Step by Step Solution

1. Step 1: Write the proportion equation
   5,392.50 : 8,086.71 = 1,881.60 : x
2. Step 2: Convert to fraction form
   5,392.50/8,086.71 = 1,881.60/x
3. Step 3: Cross multiply
   5,392.50x = 8,086.71 × 1,881.60
4. Step 4: Simplify right side
   5,392.50x = 15,215,930.27
5. Step 5: Solve for x
   x = 15,215,930.27/5,392.50
6. Step 6: Final answer
   x = 2,821.69