Finding the Fourth Proportional to 1,946.50, 2,919.94 and 958.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,946.50 : 2,919.94 = 958.72 : x
2. Step 2: Convert to fraction form
   1,946.50/2,919.94 = 958.72/x
3. Step 3: Cross multiply
   1,946.50x = 2,919.94 × 958.72
4. Step 4: Simplify right side
   1,946.50x = 2,799,404.88
5. Step 5: Solve for x
   x = 2,799,404.88/1,946.50
6. Step 6: Final answer
   x = 1,438.17