Finding the Fourth Proportional to 1,581.97, 2,356.72 and 1,510.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,581.97 : 2,356.72 = 1,510.89 : x
2. Step 2: Convert to fraction form
   1,581.97/2,356.72 = 1,510.89/x
3. Step 3: Cross multiply
   1,581.97x = 2,356.72 × 1,510.89
4. Step 4: Simplify right side
   1,581.97x = 3,560,744.68
5. Step 5: Solve for x
   x = 3,560,744.68/1,581.97
6. Step 6: Final answer
   x = 2,250.83