Finding the Fourth Proportional to 1,433.70, 1,978.48 and 844.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.70 : 1,978.48 = 844.43 : x
2. Step 2: Convert to fraction form
   1,433.70/1,978.48 = 844.43/x
3. Step 3: Cross multiply
   1,433.70x = 1,978.48 × 844.43
4. Step 4: Simplify right side
   1,433.70x = 1,670,674.28
5. Step 5: Solve for x
   x = 1,670,674.28/1,433.70
6. Step 6: Final answer
   x = 1,165.29