Finding the Fourth Proportional to 1,689.94, 2,333.72 and 1,597.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689.94 : 2,333.72 = 1,597.90 : x
2. Step 2: Convert to fraction form
   1,689.94/2,333.72 = 1,597.90/x
3. Step 3: Cross multiply
   1,689.94x = 2,333.72 × 1,597.90
4. Step 4: Simplify right side
   1,689.94x = 3,729,057.02
5. Step 5: Solve for x
   x = 3,729,057.02/1,689.94
6. Step 6: Final answer
   x = 2,206.62