Finding the Fourth Proportional to 1,432.80, 1,976.74 and 843.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.80 : 1,976.74 = 843.34 : x
2. Step 2: Convert to fraction form
   1,432.80/1,976.74 = 843.34/x
3. Step 3: Cross multiply
   1,432.80x = 1,976.74 × 843.34
4. Step 4: Simplify right side
   1,432.80x = 1,667,063.91
5. Step 5: Solve for x
   x = 1,667,063.91/1,432.80
6. Step 6: Final answer
   x = 1,163.50