Finding the Fourth Proportional to 1,418.31, 1,957.34 and 797.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418.31 : 1,957.34 = 797.31 : x
2. Step 2: Convert to fraction form
   1,418.31/1,957.34 = 797.31/x
3. Step 3: Cross multiply
   1,418.31x = 1,957.34 × 797.31
4. Step 4: Simplify right side
   1,418.31x = 1,560,602.77
5. Step 5: Solve for x
   x = 1,560,602.77/1,418.31
6. Step 6: Final answer
   x = 1,100.33