Finding the Fourth Proportional to 2,120.16, 2,923.28 and 2,003.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,120.16 : 2,923.28 = 2,003.25 : x
2. Step 2: Convert to fraction form
   2,120.16/2,923.28 = 2,003.25/x
3. Step 3: Cross multiply
   2,120.16x = 2,923.28 × 2,003.25
4. Step 4: Simplify right side
   2,120.16x = 5,856,058.16
5. Step 5: Solve for x
   x = 5,856,058.16/2,120.16
6. Step 6: Final answer
   x = 2,762.08