Finding the Fourth Proportional to 1,045.55, 1,442.82 and 603.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.55 : 1,442.82 = 603.69 : x
2. Step 2: Convert to fraction form
   1,045.55/1,442.82 = 603.69/x
3. Step 3: Cross multiply
   1,045.55x = 1,442.82 × 603.69
4. Step 4: Simplify right side
   1,045.55x = 871,016.01
5. Step 5: Solve for x
   x = 871,016.01/1,045.55
6. Step 6: Final answer
   x = 833.07