Finding the Fourth Proportional to 1,520.24, 2,091.89 and 1,510.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,520.24 : 2,091.89 = 1,510.68 : x
2. Step 2: Convert to fraction form
   1,520.24/2,091.89 = 1,510.68/x
3. Step 3: Cross multiply
   1,520.24x = 2,091.89 × 1,510.68
4. Step 4: Simplify right side
   1,520.24x = 3,160,163.98
5. Step 5: Solve for x
   x = 3,160,163.98/1,520.24
6. Step 6: Final answer
   x = 2,078.72