Finding the Fourth Proportional to 2,886.47, 4,305.40 and 2,418.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.47 : 4,305.40 = 2,418.83 : x
2. Step 2: Convert to fraction form
   2,886.47/4,305.40 = 2,418.83/x
3. Step 3: Cross multiply
   2,886.47x = 4,305.40 × 2,418.83
4. Step 4: Simplify right side
   2,886.47x = 10,414,018.59
5. Step 5: Solve for x
   x = 10,414,018.59/2,886.47
6. Step 6: Final answer
   x = 3,607.87