Finding the Fourth Proportional to 1,045.56, 1,442.82 and 603.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.56 : 1,442.82 = 603.45 : x
2. Step 2: Convert to fraction form
   1,045.56/1,442.82 = 603.45/x
3. Step 3: Cross multiply
   1,045.56x = 1,442.82 × 603.45
4. Step 4: Simplify right side
   1,045.56x = 870,669.73
5. Step 5: Solve for x
   x = 870,669.73/1,045.56
6. Step 6: Final answer
   x = 832.73