Finding the Fourth Proportional to 3,784.52, 5,222.68 and 2,212.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,784.52 : 5,222.68 = 2,212.31 : x
2. Step 2: Convert to fraction form
   3,784.52/5,222.68 = 2,212.31/x
3. Step 3: Cross multiply
   3,784.52x = 5,222.68 × 2,212.31
4. Step 4: Simplify right side
   3,784.52x = 11,554,194.72
5. Step 5: Solve for x
   x = 11,554,194.72/3,784.52
6. Step 6: Final answer
   x = 3,053.01