Finding the Fourth Proportional to 1,017.56, 1,404.24 and 603.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,017.56 : 1,404.24 = 603.56 : x
2. Step 2: Convert to fraction form
   1,017.56/1,404.24 = 603.56/x
3. Step 3: Cross multiply
   1,017.56x = 1,404.24 × 603.56
4. Step 4: Simplify right side
   1,017.56x = 847,543.09
5. Step 5: Solve for x
   x = 847,543.09/1,017.56
6. Step 6: Final answer
   x = 832.92