Finding the Fourth Proportional to 3,700.52, 5,106.56 and 2,021.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,700.52 : 5,106.56 = 2,021.92 : x
2. Step 2: Convert to fraction form
   3,700.52/5,106.56 = 2,021.92/x
3. Step 3: Cross multiply
   3,700.52x = 5,106.56 × 2,021.92
4. Step 4: Simplify right side
   3,700.52x = 10,325,055.80
5. Step 5: Solve for x
   x = 10,325,055.80/3,700.52
6. Step 6: Final answer
   x = 2,790.16