Finding the Fourth Proportional to 1,597.89, 2,397.07 and 818.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.89 : 2,397.07 = 818.33 : x
2. Step 2: Convert to fraction form
   1,597.89/2,397.07 = 818.33/x
3. Step 3: Cross multiply
   1,597.89x = 2,397.07 × 818.33
4. Step 4: Simplify right side
   1,597.89x = 1,961,594.29
5. Step 5: Solve for x
   x = 1,961,594.29/1,597.89
6. Step 6: Final answer
   x = 1,227.62