Finding the Fourth Proportional to 3,651.86, 5,039.34 and 2,080.46

Step by Step Solution

1. Step 1: Write the proportion equation
   3,651.86 : 5,039.34 = 2,080.46 : x
2. Step 2: Convert to fraction form
   3,651.86/5,039.34 = 2,080.46/x
3. Step 3: Cross multiply
   3,651.86x = 5,039.34 × 2,080.46
4. Step 4: Simplify right side
   3,651.86x = 10,484,145.30
5. Step 5: Solve for x
   x = 10,484,145.30/3,651.86
6. Step 6: Final answer
   x = 2,870.91