Finding the Fourth Proportional to 1,432.69, 1,977.48 and 843.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.69 : 1,977.48 = 843.41 : x
2. Step 2: Convert to fraction form
   1,432.69/1,977.48 = 843.41/x
3. Step 3: Cross multiply
   1,432.69x = 1,977.48 × 843.41
4. Step 4: Simplify right side
   1,432.69x = 1,667,826.41
5. Step 5: Solve for x
   x = 1,667,826.41/1,432.69
6. Step 6: Final answer
   x = 1,164.13