Finding the Fourth Proportional to 2,003.54, 3,005.35 and 687.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.54 : 3,005.35 = 687.27 : x
2. Step 2: Convert to fraction form
   2,003.54/3,005.35 = 687.27/x
3. Step 3: Cross multiply
   2,003.54x = 3,005.35 × 687.27
4. Step 4: Simplify right side
   2,003.54x = 2,065,496.45
5. Step 5: Solve for x
   x = 2,065,496.45/2,003.54
6. Step 6: Final answer
   x = 1,030.93