Finding the Fourth Proportional to 2,786.73, 4,180.64 and 1,400.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,786.73 : 4,180.64 = 1,400.37 : x
2. Step 2: Convert to fraction form
   2,786.73/4,180.64 = 1,400.37/x
3. Step 3: Cross multiply
   2,786.73x = 4,180.64 × 1,400.37
4. Step 4: Simplify right side
   2,786.73x = 5,854,435.83
5. Step 5: Solve for x
   x = 5,854,435.83/2,786.73
6. Step 6: Final answer
   x = 2,100.83