Finding the Fourth Proportional to 3,768.39, 5,656.08 and 1,920.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,768.39 : 5,656.08 = 1,920.89 : x
2. Step 2: Convert to fraction form
   3,768.39/5,656.08 = 1,920.89/x
3. Step 3: Cross multiply
   3,768.39x = 5,656.08 × 1,920.89
4. Step 4: Simplify right side
   3,768.39x = 10,864,688.57
5. Step 5: Solve for x
   x = 10,864,688.57/3,768.39
6. Step 6: Final answer
   x = 2,883.12