Finding the Fourth Proportional to 2,100.29, 2,898.27 and 1,216.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.29 : 2,898.27 = 1,216.08 : x
2. Step 2: Convert to fraction form
   2,100.29/2,898.27 = 1,216.08/x
3. Step 3: Cross multiply
   2,100.29x = 2,898.27 × 1,216.08
4. Step 4: Simplify right side
   2,100.29x = 3,524,528.18
5. Step 5: Solve for x
   x = 3,524,528.18/2,100.29
6. Step 6: Final answer
   x = 1,678.12