Finding the Fourth Proportional to 2,270.72, 3,133.76 and 1,276.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.72 : 3,133.76 = 1,276.08 : x
2. Step 2: Convert to fraction form
   2,270.72/3,133.76 = 1,276.08/x
3. Step 3: Cross multiply
   2,270.72x = 3,133.76 × 1,276.08
4. Step 4: Simplify right side
   2,270.72x = 3,998,922.08
5. Step 5: Solve for x
   x = 3,998,922.08/2,270.72
6. Step 6: Final answer
   x = 1,761.08