Finding the Fourth Proportional to 2,946.72, 4,420.01 and 866.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,946.72 : 4,420.01 = 866.67 : x
2. Step 2: Convert to fraction form
   2,946.72/4,420.01 = 866.67/x
3. Step 3: Cross multiply
   2,946.72x = 4,420.01 × 866.67
4. Step 4: Simplify right side
   2,946.72x = 3,830,685.73
5. Step 5: Solve for x
   x = 3,830,685.73/2,946.72
6. Step 6: Final answer
   x = 1,299.98