Finding the Fourth Proportional to 3,777.30, 5,212.56 and 2,098.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,777.30 : 5,212.56 = 2,098.71 : x
2. Step 2: Convert to fraction form
   3,777.30/5,212.56 = 2,098.71/x
3. Step 3: Cross multiply
   3,777.30x = 5,212.56 × 2,098.71
4. Step 4: Simplify right side
   3,777.30x = 10,939,651.80
5. Step 5: Solve for x
   x = 10,939,651.80/3,777.30
6. Step 6: Final answer
   x = 2,896.16