Finding the Fourth Proportional to 1,433.59, 1,978.50 and 844.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.59 : 1,978.50 = 844.32 : x
2. Step 2: Convert to fraction form
   1,433.59/1,978.50 = 844.32/x
3. Step 3: Cross multiply
   1,433.59x = 1,978.50 × 844.32
4. Step 4: Simplify right side
   1,433.59x = 1,670,487.12
5. Step 5: Solve for x
   x = 1,670,487.12/1,433.59
6. Step 6: Final answer
   x = 1,165.25