Finding the Fourth Proportional to 2,271.56, 3,135.03 and 1,276.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.56 : 3,135.03 = 1,276.88 : x
2. Step 2: Convert to fraction form
   2,271.56/3,135.03 = 1,276.88/x
3. Step 3: Cross multiply
   2,271.56x = 3,135.03 × 1,276.88
4. Step 4: Simplify right side
   2,271.56x = 4,003,057.11
5. Step 5: Solve for x
   x = 4,003,057.11/2,271.56
6. Step 6: Final answer
   x = 1,762.25