Finding the Fourth Proportional to 2,100.36, 2,898.18 and 1,216.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.36 : 2,898.18 = 1,216.24 : x
2. Step 2: Convert to fraction form
   2,100.36/2,898.18 = 1,216.24/x
3. Step 3: Cross multiply
   2,100.36x = 2,898.18 × 1,216.24
4. Step 4: Simplify right side
   2,100.36x = 3,524,882.44
5. Step 5: Solve for x
   x = 3,524,882.44/2,100.36
6. Step 6: Final answer
   x = 1,678.23