Finding the Fourth Proportional to 2,501.10, 3,749.35 and 857.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,501.10 : 3,749.35 = 857.27 : x
2. Step 2: Convert to fraction form
   2,501.10/3,749.35 = 857.27/x
3. Step 3: Cross multiply
   2,501.10x = 3,749.35 × 857.27
4. Step 4: Simplify right side
   2,501.10x = 3,214,212.50
5. Step 5: Solve for x
   x = 3,214,212.50/2,501.10
6. Step 6: Final answer
   x = 1,285.12