Finding the Fourth Proportional to 2,670.94, 3,687.42 and 2,080.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,670.94 : 3,687.42 = 2,080.18 : x
2. Step 2: Convert to fraction form
   2,670.94/3,687.42 = 2,080.18/x
3. Step 3: Cross multiply
   2,670.94x = 3,687.42 × 2,080.18
4. Step 4: Simplify right side
   2,670.94x = 7,670,497.34
5. Step 5: Solve for x
   x = 7,670,497.34/2,670.94
6. Step 6: Final answer
   x = 2,871.83