Finding the Fourth Proportional to 1,425.90, 1,967.69 and 796.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,425.90 : 1,967.69 = 796.38 : x
2. Step 2: Convert to fraction form
   1,425.90/1,967.69 = 796.38/x
3. Step 3: Cross multiply
   1,425.90x = 1,967.69 × 796.38
4. Step 4: Simplify right side
   1,425.90x = 1,567,024.98
5. Step 5: Solve for x
   x = 1,567,024.98/1,425.90
6. Step 6: Final answer
   x = 1,098.97