Finding the Fourth Proportional to 3,861.57, 5,793.27 and 1,264.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,861.57 : 5,793.27 = 1,264.50 : x
2. Step 2: Convert to fraction form
   3,861.57/5,793.27 = 1,264.50/x
3. Step 3: Cross multiply
   3,861.57x = 5,793.27 × 1,264.50
4. Step 4: Simplify right side
   3,861.57x = 7,325,589.92
5. Step 5: Solve for x
   x = 7,325,589.92/3,861.57
6. Step 6: Final answer
   x = 1,897.05