Finding the Fourth Proportional to 1,432.88, 1,976.58 and 843.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.88 : 1,976.58 = 843.32 : x
2. Step 2: Convert to fraction form
   1,432.88/1,976.58 = 843.32/x
3. Step 3: Cross multiply
   1,432.88x = 1,976.58 × 843.32
4. Step 4: Simplify right side
   1,432.88x = 1,666,889.45
5. Step 5: Solve for x
   x = 1,666,889.45/1,432.88
6. Step 6: Final answer
   x = 1,163.31