Finding the Fourth Proportional to 2,491.56, 3,738.18 and 1,396.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,491.56 : 3,738.18 = 1,396.80 : x
2. Step 2: Convert to fraction form
   2,491.56/3,738.18 = 1,396.80/x
3. Step 3: Cross multiply
   2,491.56x = 3,738.18 × 1,396.80
4. Step 4: Simplify right side
   2,491.56x = 5,221,489.82
5. Step 5: Solve for x
   x = 5,221,489.82/2,491.56
6. Step 6: Final answer
   x = 2,095.67