Finding the Fourth Proportional to 3,778.92, 5,667.89 and 1,438.29

Step by Step Solution

1. Step 1: Write the proportion equation
   3,778.92 : 5,667.89 = 1,438.29 : x
2. Step 2: Convert to fraction form
   3,778.92/5,667.89 = 1,438.29/x
3. Step 3: Cross multiply
   3,778.92x = 5,667.89 × 1,438.29
4. Step 4: Simplify right side
   3,778.92x = 8,152,062.32
5. Step 5: Solve for x
   x = 8,152,062.32/3,778.92
6. Step 6: Final answer
   x = 2,157.25