Finding the Fourth Proportional to 2,674.30, 4,008.72 and 1,808.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,674.30 : 4,008.72 = 1,808.70 : x
2. Step 2: Convert to fraction form
   2,674.30/4,008.72 = 1,808.70/x
3. Step 3: Cross multiply
   2,674.30x = 4,008.72 × 1,808.70
4. Step 4: Simplify right side
   2,674.30x = 7,250,571.86
5. Step 5: Solve for x
   x = 7,250,571.86/2,674.30
6. Step 6: Final answer
   x = 2,711.20