Finding the Fourth Proportional to 2,271.56, 3,135.23 and 1,277.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.56 : 3,135.23 = 1,277.15 : x
2. Step 2: Convert to fraction form
   2,271.56/3,135.23 = 1,277.15/x
3. Step 3: Cross multiply
   2,271.56x = 3,135.23 × 1,277.15
4. Step 4: Simplify right side
   2,271.56x = 4,004,176.18
5. Step 5: Solve for x
   x = 4,004,176.18/2,271.56
6. Step 6: Final answer
   x = 1,762.75