Finding the Fourth Proportional to 1,290.51, 1,781.73 and 793.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290.51 : 1,781.73 = 793.62 : x
2. Step 2: Convert to fraction form
   1,290.51/1,781.73 = 793.62/x
3. Step 3: Cross multiply
   1,290.51x = 1,781.73 × 793.62
4. Step 4: Simplify right side
   1,290.51x = 1,414,016.56
5. Step 5: Solve for x
   x = 1,414,016.56/1,290.51
6. Step 6: Final answer
   x = 1,095.70