Finding the Fourth Proportional to 1,433.52, 1,978.21 and 844.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.52 : 1,978.21 = 844.09 : x
2. Step 2: Convert to fraction form
   1,433.52/1,978.21 = 844.09/x
3. Step 3: Cross multiply
   1,433.52x = 1,978.21 × 844.09
4. Step 4: Simplify right side
   1,433.52x = 1,669,787.28
5. Step 5: Solve for x
   x = 1,669,787.28/1,433.52
6. Step 6: Final answer
   x = 1,164.82