Finding the Fourth Proportional to 2,915.69, 4,373.90 and 1,067.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,915.69 : 4,373.90 = 1,067.67 : x
2. Step 2: Convert to fraction form
   2,915.69/4,373.90 = 1,067.67/x
3. Step 3: Cross multiply
   2,915.69x = 4,373.90 × 1,067.67
4. Step 4: Simplify right side
   2,915.69x = 4,669,880.48
5. Step 5: Solve for x
   x = 4,669,880.48/2,915.69
6. Step 6: Final answer
   x = 1,601.64