Finding the Fourth Proportional to 1,659.67, 2,290.23 and 996.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,659.67 : 2,290.23 = 996.89 : x
2. Step 2: Convert to fraction form
   1,659.67/2,290.23 = 996.89/x
3. Step 3: Cross multiply
   1,659.67x = 2,290.23 × 996.89
4. Step 4: Simplify right side
   1,659.67x = 2,283,095.93
5. Step 5: Solve for x
   x = 2,283,095.93/1,659.67
6. Step 6: Final answer
   x = 1,375.63