Finding the Fourth Proportional to 1,412.76, 1,949.70 and 791.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,412.76 : 1,949.70 = 791.72 : x
2. Step 2: Convert to fraction form
   1,412.76/1,949.70 = 791.72/x
3. Step 3: Cross multiply
   1,412.76x = 1,949.70 × 791.72
4. Step 4: Simplify right side
   1,412.76x = 1,543,616.48
5. Step 5: Solve for x
   x = 1,543,616.48/1,412.76
6. Step 6: Final answer
   x = 1,092.62