Finding the Fourth Proportional to 2,577.41, 3,866.83 and 847.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,577.41 : 3,866.83 = 847.25 : x
2. Step 2: Convert to fraction form
   2,577.41/3,866.83 = 847.25/x
3. Step 3: Cross multiply
   2,577.41x = 3,866.83 × 847.25
4. Step 4: Simplify right side
   2,577.41x = 3,276,171.72
5. Step 5: Solve for x
   x = 3,276,171.72/2,577.41
6. Step 6: Final answer
   x = 1,271.11