Finding the Fourth Proportional to 1,150.58, 1,726.95 and 603.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.58 : 1,726.95 = 603.15 : x
2. Step 2: Convert to fraction form
   1,150.58/1,726.95 = 603.15/x
3. Step 3: Cross multiply
   1,150.58x = 1,726.95 × 603.15
4. Step 4: Simplify right side
   1,150.58x = 1,041,609.89
5. Step 5: Solve for x
   x = 1,041,609.89/1,150.58
6. Step 6: Final answer
   x = 905.30