Finding the Fourth Proportional to 1,960.79, 2,942.34 and 729.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,960.79 : 2,942.34 = 729.07 : x
2. Step 2: Convert to fraction form
   1,960.79/2,942.34 = 729.07/x
3. Step 3: Cross multiply
   1,960.79x = 2,942.34 × 729.07
4. Step 4: Simplify right side
   1,960.79x = 2,145,171.82
5. Step 5: Solve for x
   x = 2,145,171.82/1,960.79
6. Step 6: Final answer
   x = 1,094.03