Finding the Fourth Proportional to 4,667.53, 6,439.82 and 2,778.16

Step by Step Solution

1. Step 1: Write the proportion equation
   4,667.53 : 6,439.82 = 2,778.16 : x
2. Step 2: Convert to fraction form
   4,667.53/6,439.82 = 2,778.16/x
3. Step 3: Cross multiply
   4,667.53x = 6,439.82 × 2,778.16
4. Step 4: Simplify right side
   4,667.53x = 17,890,844.49
5. Step 5: Solve for x
   x = 17,890,844.49/4,667.53
6. Step 6: Final answer
   x = 3,833.05