Finding the Fourth Proportional to 1,433.64, 1,978.76 and 844.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.64 : 1,978.76 = 844.37 : x
2. Step 2: Convert to fraction form
   1,433.64/1,978.76 = 844.37/x
3. Step 3: Cross multiply
   1,433.64x = 1,978.76 × 844.37
4. Step 4: Simplify right side
   1,433.64x = 1,670,791.47
5. Step 5: Solve for x
   x = 1,670,791.47/1,433.64
6. Step 6: Final answer
   x = 1,165.42