Finding the Fourth Proportional to 2,687.30, 4,030.32 and 739.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,687.30 : 4,030.32 = 739.04 : x
2. Step 2: Convert to fraction form
   2,687.30/4,030.32 = 739.04/x
3. Step 3: Cross multiply
   2,687.30x = 4,030.32 × 739.04
4. Step 4: Simplify right side
   2,687.30x = 2,978,567.69
5. Step 5: Solve for x
   x = 2,978,567.69/2,687.30
6. Step 6: Final answer
   x = 1,108.39