Finding the Fourth Proportional to 1,689.68, 2,535.33 and 996.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689.68 : 2,535.33 = 996.72 : x
2. Step 2: Convert to fraction form
   1,689.68/2,535.33 = 996.72/x
3. Step 3: Cross multiply
   1,689.68x = 2,535.33 × 996.72
4. Step 4: Simplify right side
   1,689.68x = 2,527,014.12
5. Step 5: Solve for x
   x = 2,527,014.12/1,689.68
6. Step 6: Final answer
   x = 1,495.56