Finding the Fourth Proportional to 1,294.34, 1,786.50 and 797.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,294.34 : 1,786.50 = 797.30 : x
2. Step 2: Convert to fraction form
   1,294.34/1,786.50 = 797.30/x
3. Step 3: Cross multiply
   1,294.34x = 1,786.50 × 797.30
4. Step 4: Simplify right side
   1,294.34x = 1,424,376.45
5. Step 5: Solve for x
   x = 1,424,376.45/1,294.34
6. Step 6: Final answer
   x = 1,100.47