Finding the Fourth Proportional to 1,420.37, 1,959.89 and 799.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,420.37 : 1,959.89 = 799.25 : x
2. Step 2: Convert to fraction form
   1,420.37/1,959.89 = 799.25/x
3. Step 3: Cross multiply
   1,420.37x = 1,959.89 × 799.25
4. Step 4: Simplify right side
   1,420.37x = 1,566,438.09
5. Step 5: Solve for x
   x = 1,566,438.09/1,420.37
6. Step 6: Final answer
   x = 1,102.84