Finding the Fourth Proportional to 2,578.52, 3,861.30 and 1,847.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578.52 : 3,861.30 = 1,847.72 : x
2. Step 2: Convert to fraction form
   2,578.52/3,861.30 = 1,847.72/x
3. Step 3: Cross multiply
   2,578.52x = 3,861.30 × 1,847.72
4. Step 4: Simplify right side
   2,578.52x = 7,134,601.24
5. Step 5: Solve for x
   x = 7,134,601.24/2,578.52
6. Step 6: Final answer
   x = 2,766.94