Finding the Fourth Proportional to 1,426.99, 1,969.13 and 797.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,426.99 : 1,969.13 = 797.47 : x
2. Step 2: Convert to fraction form
   1,426.99/1,969.13 = 797.47/x
3. Step 3: Cross multiply
   1,426.99x = 1,969.13 × 797.47
4. Step 4: Simplify right side
   1,426.99x = 1,570,322.10
5. Step 5: Solve for x
   x = 1,570,322.10/1,426.99
6. Step 6: Final answer
   x = 1,100.44