Finding the Fourth Proportional to 3,778.72, 5,669.28 and 1,930.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,778.72 : 5,669.28 = 1,930.32 : x
2. Step 2: Convert to fraction form
   3,778.72/5,669.28 = 1,930.32/x
3. Step 3: Cross multiply
   3,778.72x = 5,669.28 × 1,930.32
4. Step 4: Simplify right side
   3,778.72x = 10,943,524.57
5. Step 5: Solve for x
   x = 10,943,524.57/3,778.72
6. Step 6: Final answer
   x = 2,896.09