Finding the Fourth Proportional to 1,947.89, 2,923.38 and 1,717.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,947.89 : 2,923.38 = 1,717.23 : x
2. Step 2: Convert to fraction form
   1,947.89/2,923.38 = 1,717.23/x
3. Step 3: Cross multiply
   1,947.89x = 2,923.38 × 1,717.23
4. Step 4: Simplify right side
   1,947.89x = 5,020,126.80
5. Step 5: Solve for x
   x = 5,020,126.80/1,947.89
6. Step 6: Final answer
   x = 2,577.21