Finding the Fourth Proportional to 1,069.94, 1,604.79 and 300.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.94 : 1,604.79 = 300.42 : x
2. Step 2: Convert to fraction form
   1,069.94/1,604.79 = 300.42/x
3. Step 3: Cross multiply
   1,069.94x = 1,604.79 × 300.42
4. Step 4: Simplify right side
   1,069.94x = 482,111.01
5. Step 5: Solve for x
   x = 482,111.01/1,069.94
6. Step 6: Final answer
   x = 450.60