Finding the Fourth Proportional to 1,427.01, 1,969.35 and 797.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427.01 : 1,969.35 = 797.55 : x
2. Step 2: Convert to fraction form
   1,427.01/1,969.35 = 797.55/x
3. Step 3: Cross multiply
   1,427.01x = 1,969.35 × 797.55
4. Step 4: Simplify right side
   1,427.01x = 1,570,644.72
5. Step 5: Solve for x
   x = 1,570,644.72/1,427.01
6. Step 6: Final answer
   x = 1,100.66