Finding the Fourth Proportional to 1,962.96, 2,942.73 and 729.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,962.96 : 2,942.73 = 729.72 : x
2. Step 2: Convert to fraction form
   1,962.96/2,942.73 = 729.72/x
3. Step 3: Cross multiply
   1,962.96x = 2,942.73 × 729.72
4. Step 4: Simplify right side
   1,962.96x = 2,147,368.94
5. Step 5: Solve for x
   x = 2,147,368.94/1,962.96
6. Step 6: Final answer
   x = 1,093.94