Finding the Fourth Proportional to 1,433.34, 1,978.16 and 844.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.34 : 1,978.16 = 844.07 : x
2. Step 2: Convert to fraction form
   1,433.34/1,978.16 = 844.07/x
3. Step 3: Cross multiply
   1,433.34x = 1,978.16 × 844.07
4. Step 4: Simplify right side
   1,433.34x = 1,669,691.40
5. Step 5: Solve for x
   x = 1,669,691.40/1,433.34
6. Step 6: Final answer
   x = 1,164.90