Finding the Fourth Proportional to 1,045.68, 1,443.18 and 603.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.68 : 1,443.18 = 603.56 : x
2. Step 2: Convert to fraction form
   1,045.68/1,443.18 = 603.56/x
3. Step 3: Cross multiply
   1,045.68x = 1,443.18 × 603.56
4. Step 4: Simplify right side
   1,045.68x = 871,045.72
5. Step 5: Solve for x
   x = 871,045.72/1,045.68
6. Step 6: Final answer
   x = 832.99