Finding the Fourth Proportional to 3,784.72, 5,223.06 and 2,106.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,784.72 : 5,223.06 = 2,106.06 : x
2. Step 2: Convert to fraction form
   3,784.72/5,223.06 = 2,106.06/x
3. Step 3: Cross multiply
   3,784.72x = 5,223.06 × 2,106.06
4. Step 4: Simplify right side
   3,784.72x = 11,000,077.74
5. Step 5: Solve for x
   x = 11,000,077.74/3,784.72
6. Step 6: Final answer
   x = 2,906.44