Finding the Fourth Proportional to 4,667.53, 6,440.71 and 2,874.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,667.53 : 6,440.71 = 2,874.72 : x
2. Step 2: Convert to fraction form
   4,667.53/6,440.71 = 2,874.72/x
3. Step 3: Cross multiply
   4,667.53x = 6,440.71 × 2,874.72
4. Step 4: Simplify right side
   4,667.53x = 18,515,237.85
5. Step 5: Solve for x
   x = 18,515,237.85/4,667.53
6. Step 6: Final answer
   x = 3,966.82