Finding the Fourth Proportional to 2,667.75, 3,680.55 and 1,672.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.75 : 3,680.55 = 1,672.67 : x
2. Step 2: Convert to fraction form
   2,667.75/3,680.55 = 1,672.67/x
3. Step 3: Cross multiply
   2,667.75x = 3,680.55 × 1,672.67
4. Step 4: Simplify right side
   2,667.75x = 6,156,327.17
5. Step 5: Solve for x
   x = 6,156,327.17/2,667.75
6. Step 6: Final answer
   x = 2,307.69