Finding the Fourth Proportional to 3,785.33, 5,223.61 and 2,106.69

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785.33 : 5,223.61 = 2,106.69 : x
2. Step 2: Convert to fraction form
   3,785.33/5,223.61 = 2,106.69/x
3. Step 3: Cross multiply
   3,785.33x = 5,223.61 × 2,106.69
4. Step 4: Simplify right side
   3,785.33x = 11,004,527.53
5. Step 5: Solve for x
   x = 11,004,527.53/3,785.33
6. Step 6: Final answer
   x = 2,907.15