Finding the Fourth Proportional to 1,742.89, 2,405.23 and 996.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,742.89 : 2,405.23 = 996.92 : x
2. Step 2: Convert to fraction form
   1,742.89/2,405.23 = 996.92/x
3. Step 3: Cross multiply
   1,742.89x = 2,405.23 × 996.92
4. Step 4: Simplify right side
   1,742.89x = 2,397,821.89
5. Step 5: Solve for x
   x = 2,397,821.89/1,742.89
6. Step 6: Final answer
   x = 1,375.77