Finding the Fourth Proportional to 2,610.57, 3,601.86 and 1,491.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,610.57 : 3,601.86 = 1,491.10 : x
2. Step 2: Convert to fraction form
   2,610.57/3,601.86 = 1,491.10/x
3. Step 3: Cross multiply
   2,610.57x = 3,601.86 × 1,491.10
4. Step 4: Simplify right side
   2,610.57x = 5,370,733.45
5. Step 5: Solve for x
   x = 5,370,733.45/2,610.57
6. Step 6: Final answer
   x = 2,057.30