Finding the Fourth Proportional to 2,271.21, 3,134.28 and 1,276.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.21 : 3,134.28 = 1,276.83 : x
2. Step 2: Convert to fraction form
   2,271.21/3,134.28 = 1,276.83/x
3. Step 3: Cross multiply
   2,271.21x = 3,134.28 × 1,276.83
4. Step 4: Simplify right side
   2,271.21x = 4,001,942.73
5. Step 5: Solve for x
   x = 4,001,942.73/2,271.21
6. Step 6: Final answer
   x = 1,762.03