Finding the Fourth Proportional to 2,155.74, 3,229.01 and 1,043.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.74 : 3,229.01 = 1,043.47 : x
2. Step 2: Convert to fraction form
   2,155.74/3,229.01 = 1,043.47/x
3. Step 3: Cross multiply
   2,155.74x = 3,229.01 × 1,043.47
4. Step 4: Simplify right side
   2,155.74x = 3,369,375.06
5. Step 5: Solve for x
   x = 3,369,375.06/2,155.74
6. Step 6: Final answer
   x = 1,562.98