Finding the Fourth Proportional to 3,864.89, 5,793.15 and 1,786.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,864.89 : 5,793.15 = 1,786.43 : x
2. Step 2: Convert to fraction form
   3,864.89/5,793.15 = 1,786.43/x
3. Step 3: Cross multiply
   3,864.89x = 5,793.15 × 1,786.43
4. Step 4: Simplify right side
   3,864.89x = 10,349,056.95
5. Step 5: Solve for x
   x = 10,349,056.95/3,864.89
6. Step 6: Final answer
   x = 2,677.71