Finding the Fourth Proportional to 2,265.95, 3,127.06 and 1,271.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,265.95 : 3,127.06 = 1,271.30 : x
2. Step 2: Convert to fraction form
   2,265.95/3,127.06 = 1,271.30/x
3. Step 3: Cross multiply
   2,265.95x = 3,127.06 × 1,271.30
4. Step 4: Simplify right side
   2,265.95x = 3,975,409.39
5. Step 5: Solve for x
   x = 3,975,409.39/2,265.95
6. Step 6: Final answer
   x = 1,754.42