Finding the Fourth Proportional to 3,700.58, 5,106.78 and 2,021.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,700.58 : 5,106.78 = 2,021.94 : x
2. Step 2: Convert to fraction form
   3,700.58/5,106.78 = 2,021.94/x
3. Step 3: Cross multiply
   3,700.58x = 5,106.78 × 2,021.94
4. Step 4: Simplify right side
   3,700.58x = 10,325,602.75
5. Step 5: Solve for x
   x = 10,325,602.75/3,700.58
6. Step 6: Final answer
   x = 2,790.27