Finding the Fourth Proportional to 1,597.98, 2,204.79 and 1,320.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,597.98 : 2,204.79 = 1,320.54 : x
2. Step 2: Convert to fraction form
   1,597.98/2,204.79 = 1,320.54/x
3. Step 3: Cross multiply
   1,597.98x = 2,204.79 × 1,320.54
4. Step 4: Simplify right side
   1,597.98x = 2,911,513.39
5. Step 5: Solve for x
   x = 2,911,513.39/1,597.98
6. Step 6: Final answer
   x = 1,822.00