Finding the Fourth Proportional to 1,786.41, 2,462.61 and 1,253.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,786.41 : 2,462.61 = 1,253.61 : x
2. Step 2: Convert to fraction form
   1,786.41/2,462.61 = 1,253.61/x
3. Step 3: Cross multiply
   1,786.41x = 2,462.61 × 1,253.61
4. Step 4: Simplify right side
   1,786.41x = 3,087,152.52
5. Step 5: Solve for x
   x = 3,087,152.52/1,786.41
6. Step 6: Final answer
   x = 1,728.13