Finding the Fourth Proportional to 2,479.46, 3,719.16 and 630.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,479.46 : 3,719.16 = 630.72 : x
2. Step 2: Convert to fraction form
   2,479.46/3,719.16 = 630.72/x
3. Step 3: Cross multiply
   2,479.46x = 3,719.16 × 630.72
4. Step 4: Simplify right side
   2,479.46x = 2,345,748.60
5. Step 5: Solve for x
   x = 2,345,748.60/2,479.46
6. Step 6: Final answer
   x = 946.07