Finding the Fourth Proportional to 1,151.18, 1,727.25 and 603.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,151.18 : 1,727.25 = 603.72 : x
2. Step 2: Convert to fraction form
   1,151.18/1,727.25 = 603.72/x
3. Step 3: Cross multiply
   1,151.18x = 1,727.25 × 603.72
4. Step 4: Simplify right side
   1,151.18x = 1,042,775.37
5. Step 5: Solve for x
   x = 1,042,775.37/1,151.18
6. Step 6: Final answer
   x = 905.84