Finding the Fourth Proportional to 2,270.79, 3,133.71 and 1,276.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.79 : 3,133.71 = 1,276.04 : x
2. Step 2: Convert to fraction form
   2,270.79/3,133.71 = 1,276.04/x
3. Step 3: Cross multiply
   2,270.79x = 3,133.71 × 1,276.04
4. Step 4: Simplify right side
   2,270.79x = 3,998,739.31
5. Step 5: Solve for x
   x = 3,998,739.31/2,270.79
6. Step 6: Final answer
   x = 1,760.95