Finding the Fourth Proportional to 2,605.80, 3,907.89 and 1,510.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.80 : 3,907.89 = 1,510.68 : x
2. Step 2: Convert to fraction form
   2,605.80/3,907.89 = 1,510.68/x
3. Step 3: Cross multiply
   2,605.80x = 3,907.89 × 1,510.68
4. Step 4: Simplify right side
   2,605.80x = 5,903,571.27
5. Step 5: Solve for x
   x = 5,903,571.27/2,605.80
6. Step 6: Final answer
   x = 2,265.55