Finding the Fourth Proportional to 3,781.93, 5,218.81 and 2,103.23

Step by Step Solution

1. Step 1: Write the proportion equation
   3,781.93 : 5,218.81 = 2,103.23 : x
2. Step 2: Convert to fraction form
   3,781.93/5,218.81 = 2,103.23/x
3. Step 3: Cross multiply
   3,781.93x = 5,218.81 × 2,103.23
4. Step 4: Simplify right side
   3,781.93x = 10,976,357.76
5. Step 5: Solve for x
   x = 10,976,357.76/3,781.93
6. Step 6: Final answer
   x = 2,902.32