Finding the Fourth Proportional to 1,433.83, 1,978.53 and 844.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.83 : 1,978.53 = 844.30 : x
2. Step 2: Convert to fraction form
   1,433.83/1,978.53 = 844.30/x
3. Step 3: Cross multiply
   1,433.83x = 1,978.53 × 844.30
4. Step 4: Simplify right side
   1,433.83x = 1,670,472.88
5. Step 5: Solve for x
   x = 1,670,472.88/1,433.83
6. Step 6: Final answer
   x = 1,165.04