Finding the Fourth Proportional to 1,055.37, 1,456.49 and 607.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,055.37 : 1,456.49 = 607.38 : x
2. Step 2: Convert to fraction form
   1,055.37/1,456.49 = 607.38/x
3. Step 3: Cross multiply
   1,055.37x = 1,456.49 × 607.38
4. Step 4: Simplify right side
   1,055.37x = 884,644.41
5. Step 5: Solve for x
   x = 884,644.41/1,055.37
6. Step 6: Final answer
   x = 838.23