Finding the Fourth Proportional to 1,433.73, 1,978.45 and 804.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433.73 : 1,978.45 = 804.15 : x
2. Step 2: Convert to fraction form
   1,433.73/1,978.45 = 804.15/x
3. Step 3: Cross multiply
   1,433.73x = 1,978.45 × 804.15
4. Step 4: Simplify right side
   1,433.73x = 1,590,968.56
5. Step 5: Solve for x
   x = 1,590,968.56/1,433.73
6. Step 6: Final answer
   x = 1,109.67