Finding the Fourth Proportional to 1,432.52, 1,976.90 and 843.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.52 : 1,976.90 = 843.39 : x
2. Step 2: Convert to fraction form
   1,432.52/1,976.90 = 843.39/x
3. Step 3: Cross multiply
   1,432.52x = 1,976.90 × 843.39
4. Step 4: Simplify right side
   1,432.52x = 1,667,293.47
5. Step 5: Solve for x
   x = 1,667,293.47/1,432.52
6. Step 6: Final answer
   x = 1,163.89