Finding the Fourth Proportional to 2,003.20, 3,004.03 and 907.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.20 : 3,004.03 = 907.45 : x
2. Step 2: Convert to fraction form
   2,003.20/3,004.03 = 907.45/x
3. Step 3: Cross multiply
   2,003.20x = 3,004.03 × 907.45
4. Step 4: Simplify right side
   2,003.20x = 2,726,007.02
5. Step 5: Solve for x
   x = 2,726,007.02/2,003.20
6. Step 6: Final answer
   x = 1,360.83