Finding the Fourth Proportional to 2,076.72, 2,863.99 and 1,603.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,076.72 : 2,863.99 = 1,603.90 : x
2. Step 2: Convert to fraction form
   2,076.72/2,863.99 = 1,603.90/x
3. Step 3: Cross multiply
   2,076.72x = 2,863.99 × 1,603.90
4. Step 4: Simplify right side
   2,076.72x = 4,593,559.15
5. Step 5: Solve for x
   x = 4,593,559.15/2,076.72
6. Step 6: Final answer
   x = 2,211.93