Finding the Fourth Proportional to 3,616.84, 5,422.83 and 1,886.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,616.84 : 5,422.83 = 1,886.68 : x
2. Step 2: Convert to fraction form
   3,616.84/5,422.83 = 1,886.68/x
3. Step 3: Cross multiply
   3,616.84x = 5,422.83 × 1,886.68
4. Step 4: Simplify right side
   3,616.84x = 10,231,144.90
5. Step 5: Solve for x
   x = 10,231,144.90/3,616.84
6. Step 6: Final answer
   x = 2,828.75