Finding the Fourth Proportional to 3,611.34, 4,983.12 and 2,118.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,611.34 : 4,983.12 = 2,118.69 : x
2. Step 2: Convert to fraction form
   3,611.34/4,983.12 = 2,118.69/x
3. Step 3: Cross multiply
   3,611.34x = 4,983.12 × 2,118.69
4. Step 4: Simplify right side
   3,611.34x = 10,557,686.51
5. Step 5: Solve for x
   x = 10,557,686.51/3,611.34
6. Step 6: Final answer
   x = 2,923.48