Finding the Fourth Proportional to 1,432.87, 1,976.98 and 843.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.87 : 1,976.98 = 843.29 : x
2. Step 2: Convert to fraction form
   1,432.87/1,976.98 = 843.29/x
3. Step 3: Cross multiply
   1,432.87x = 1,976.98 × 843.29
4. Step 4: Simplify right side
   1,432.87x = 1,667,167.46
5. Step 5: Solve for x
   x = 1,667,167.46/1,432.87
6. Step 6: Final answer
   x = 1,163.52