Finding the Fourth Proportional to 2,270.61, 3,133.39 and 1,275.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.61 : 3,133.39 = 1,275.82 : x
2. Step 2: Convert to fraction form
   2,270.61/3,133.39 = 1,275.82/x
3. Step 3: Cross multiply
   2,270.61x = 3,133.39 × 1,275.82
4. Step 4: Simplify right side
   2,270.61x = 3,997,641.63
5. Step 5: Solve for x
   x = 3,997,641.63/2,270.61
6. Step 6: Final answer
   x = 1,760.60