Finding the Fourth Proportional to 1,069.06, 1,475.32 and 603.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,069.06 : 1,475.32 = 603.31 : x
2. Step 2: Convert to fraction form
   1,069.06/1,475.32 = 603.31/x
3. Step 3: Cross multiply
   1,069.06x = 1,475.32 × 603.31
4. Step 4: Simplify right side
   1,069.06x = 890,075.31
5. Step 5: Solve for x
   x = 890,075.31/1,069.06
6. Step 6: Final answer
   x = 832.58