Finding the Fourth Proportional to 1,432.60, 1,977.02 and 843.02

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.60 : 1,977.02 = 843.02 : x
2. Step 2: Convert to fraction form
   1,432.60/1,977.02 = 843.02/x
3. Step 3: Cross multiply
   1,432.60x = 1,977.02 × 843.02
4. Step 4: Simplify right side
   1,432.60x = 1,666,667.40
5. Step 5: Solve for x
   x = 1,666,667.40/1,432.60
6. Step 6: Final answer
   x = 1,163.39