Finding the Fourth Proportional to 1,960.42, 2,940.71 and 499.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,960.42 : 2,940.71 = 499.59 : x
2. Step 2: Convert to fraction form
   1,960.42/2,940.71 = 499.59/x
3. Step 3: Cross multiply
   1,960.42x = 2,940.71 × 499.59
4. Step 4: Simplify right side
   1,960.42x = 1,469,149.31
5. Step 5: Solve for x
   x = 1,469,149.31/1,960.42
6. Step 6: Final answer
   x = 749.41