Finding the Fourth Proportional to 1,433.60, 1,978.45 and 804.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.60 : 1,978.45 = 804.33 : x
2. Step 2: Convert to fraction form
   1,433.60/1,978.45 = 804.33/x
3. Step 3: Cross multiply
   1,433.60x = 1,978.45 × 804.33
4. Step 4: Simplify right side
   1,433.60x = 1,591,326.69
5. Step 5: Solve for x
   x = 1,591,326.69/1,433.60
6. Step 6: Final answer
   x = 1,110.02