Finding the Fourth Proportional to 1,427.02, 1,969.23 and 797.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.02 : 1,969.23 = 797.55 : x
2. Step 2: Convert to fraction form
   1,427.02/1,969.23 = 797.55/x
3. Step 3: Cross multiply
   1,427.02x = 1,969.23 × 797.55
4. Step 4: Simplify right side
   1,427.02x = 1,570,559.39
5. Step 5: Solve for x
   x = 1,570,559.39/1,427.02
6. Step 6: Final answer
   x = 1,100.59