Finding the Fourth Proportional to 1,432.59, 1,977.12 and 843.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.59 : 1,977.12 = 843.32 : x
2. Step 2: Convert to fraction form
   1,432.59/1,977.12 = 843.32/x
3. Step 3: Cross multiply
   1,432.59x = 1,977.12 × 843.32
4. Step 4: Simplify right side
   1,432.59x = 1,667,334.95
5. Step 5: Solve for x
   x = 1,667,334.95/1,432.59
6. Step 6: Final answer
   x = 1,163.86