Finding the Fourth Proportional to 4,667.79, 6,442.50 and 2,679.72

Step by Step Solution

1. Step 1: Write the proportion equation
   4,667.79 : 6,442.50 = 2,679.72 : x
2. Step 2: Convert to fraction form
   4,667.79/6,442.50 = 2,679.72/x
3. Step 3: Cross multiply
   4,667.79x = 6,442.50 × 2,679.72
4. Step 4: Simplify right side
   4,667.79x = 17,264,096.10
5. Step 5: Solve for x
   x = 17,264,096.10/4,667.79
6. Step 6: Final answer
   x = 3,698.56