Finding the Fourth Proportional to 2,003.24, 3,005.49 and 907.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.24 : 3,005.49 = 907.31 : x
2. Step 2: Convert to fraction form
   2,003.24/3,005.49 = 907.31/x
3. Step 3: Cross multiply
   2,003.24x = 3,005.49 × 907.31
4. Step 4: Simplify right side
   2,003.24x = 2,726,896.10
5. Step 5: Solve for x
   x = 2,726,896.10/2,003.24
6. Step 6: Final answer
   x = 1,361.25