Finding the Fourth Proportional to 2,115.52, 3,173.52 and 1,143.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,115.52 : 3,173.52 = 1,143.04 : x
2. Step 2: Convert to fraction form
   2,115.52/3,173.52 = 1,143.04/x
3. Step 3: Cross multiply
   2,115.52x = 3,173.52 × 1,143.04
4. Step 4: Simplify right side
   2,115.52x = 3,627,460.30
5. Step 5: Solve for x
   x = 3,627,460.30/2,115.52
6. Step 6: Final answer
   x = 1,714.69