Finding the Fourth Proportional to 1,069.36, 1,475.72 and 603.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.36 : 1,475.72 = 603.61 : x
2. Step 2: Convert to fraction form
   1,069.36/1,475.72 = 603.61/x
3. Step 3: Cross multiply
   1,069.36x = 1,475.72 × 603.61
4. Step 4: Simplify right side
   1,069.36x = 890,759.35
5. Step 5: Solve for x
   x = 890,759.35/1,069.36
6. Step 6: Final answer
   x = 832.98