Finding the Fourth Proportional to 1,711.56, 2,563.89 and 1,623

Step by Step Solution

1. Step 1: Write the proportion equation
   1,711.56 : 2,563.89 = 1,623 : x
2. Step 2: Convert to fraction form
   1,711.56/2,563.89 = 1,623/x
3. Step 3: Cross multiply
   1,711.56x = 2,563.89 × 1,623
4. Step 4: Simplify right side
   1,711.56x = 4,161,193.47
5. Step 5: Solve for x
   x = 4,161,193.47/1,711.56
6. Step 6: Final answer
   x = 2,431.23