Finding the Fourth Proportional to 3,610.81, 4,983.96 and 2,118.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,610.81 : 4,983.96 = 2,118.79 : x
2. Step 2: Convert to fraction form
   3,610.81/4,983.96 = 2,118.79/x
3. Step 3: Cross multiply
   3,610.81x = 4,983.96 × 2,118.79
4. Step 4: Simplify right side
   3,610.81x = 10,559,964.61
5. Step 5: Solve for x
   x = 10,559,964.61/3,610.81
6. Step 6: Final answer
   x = 2,924.54