Finding the Fourth Proportional to 2,003.56, 3,004.98 and 907.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.56 : 3,004.98 = 907.68 : x
2. Step 2: Convert to fraction form
   2,003.56/3,004.98 = 907.68/x
3. Step 3: Cross multiply
   2,003.56x = 3,004.98 × 907.68
4. Step 4: Simplify right side
   2,003.56x = 2,727,560.25
5. Step 5: Solve for x
   x = 2,727,560.25/2,003.56
6. Step 6: Final answer
   x = 1,361.36