Finding the Fourth Proportional to 2,003.08, 2,761.12 and 1,964.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.08 : 2,761.12 = 1,964.20 : x
2. Step 2: Convert to fraction form
   2,003.08/2,761.12 = 1,964.20/x
3. Step 3: Cross multiply
   2,003.08x = 2,761.12 × 1,964.20
4. Step 4: Simplify right side
   2,003.08x = 5,423,391.90
5. Step 5: Solve for x
   x = 5,423,391.90/2,003.08
6. Step 6: Final answer
   x = 2,707.53