Finding the Fourth Proportional to 1,045.18, 1,442.42 and 603.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.18 : 1,442.42 = 603.10 : x
2. Step 2: Convert to fraction form
   1,045.18/1,442.42 = 603.10/x
3. Step 3: Cross multiply
   1,045.18x = 1,442.42 × 603.10
4. Step 4: Simplify right side
   1,045.18x = 869,923.50
5. Step 5: Solve for x
   x = 869,923.50/1,045.18
6. Step 6: Final answer
   x = 832.32