Finding the Fourth Proportional to 2,271.57, 3,134.96 and 1,277.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.57 : 3,134.96 = 1,277.09 : x
2. Step 2: Convert to fraction form
   2,271.57/3,134.96 = 1,277.09/x
3. Step 3: Cross multiply
   2,271.57x = 3,134.96 × 1,277.09
4. Step 4: Simplify right side
   2,271.57x = 4,003,610.39
5. Step 5: Solve for x
   x = 4,003,610.39/2,271.57
6. Step 6: Final answer
   x = 1,762.49