Finding the Fourth Proportional to 2,270.72, 3,132.85 and 1,326.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.72 : 3,132.85 = 1,326.30 : x
2. Step 2: Convert to fraction form
   2,270.72/3,132.85 = 1,326.30/x
3. Step 3: Cross multiply
   2,270.72x = 3,132.85 × 1,326.30
4. Step 4: Simplify right side
   2,270.72x = 4,155,098.96
5. Step 5: Solve for x
   x = 4,155,098.96/2,270.72
6. Step 6: Final answer
   x = 1,829.86