Finding the Fourth Proportional to 1,433.71, 1,978.49 and 804.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.71 : 1,978.49 = 804.19 : x
2. Step 2: Convert to fraction form
   1,433.71/1,978.49 = 804.19/x
3. Step 3: Cross multiply
   1,433.71x = 1,978.49 × 804.19
4. Step 4: Simplify right side
   1,433.71x = 1,591,081.87
5. Step 5: Solve for x
   x = 1,591,081.87/1,433.71
6. Step 6: Final answer
   x = 1,109.77