Finding the Fourth Proportional to 2,269.15, 3,131.43 and 1,324.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,269.15 : 3,131.43 = 1,324.87 : x
2. Step 2: Convert to fraction form
   2,269.15/3,131.43 = 1,324.87/x
3. Step 3: Cross multiply
   2,269.15x = 3,131.43 × 1,324.87
4. Step 4: Simplify right side
   2,269.15x = 4,148,731.04
5. Step 5: Solve for x
   x = 4,148,731.04/2,269.15
6. Step 6: Final answer
   x = 1,828.32