Finding the Fourth Proportional to 2,270.35, 3,133.43 and 1,275.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.35 : 3,133.43 = 1,275.72 : x
2. Step 2: Convert to fraction form
   2,270.35/3,133.43 = 1,275.72/x
3. Step 3: Cross multiply
   2,270.35x = 3,133.43 × 1,275.72
4. Step 4: Simplify right side
   2,270.35x = 3,997,379.32
5. Step 5: Solve for x
   x = 3,997,379.32/2,270.35
6. Step 6: Final answer
   x = 1,760.69