Finding the Fourth Proportional to 1,433.31, 1,978.02 and 844.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.31 : 1,978.02 = 844.17 : x
2. Step 2: Convert to fraction form
   1,433.31/1,978.02 = 844.17/x
3. Step 3: Cross multiply
   1,433.31x = 1,978.02 × 844.17
4. Step 4: Simplify right side
   1,433.31x = 1,669,785.14
5. Step 5: Solve for x
   x = 1,669,785.14/1,433.31
6. Step 6: Final answer
   x = 1,164.99