Finding the Fourth Proportional to 3,785.34, 5,224.01 and 2,106.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,785.34 : 5,224.01 = 2,106.72 : x
2. Step 2: Convert to fraction form
   3,785.34/5,224.01 = 2,106.72/x
3. Step 3: Cross multiply
   3,785.34x = 5,224.01 × 2,106.72
4. Step 4: Simplify right side
   3,785.34x = 11,005,544.67
5. Step 5: Solve for x
   x = 11,005,544.67/3,785.34
6. Step 6: Final answer
   x = 2,907.42