Finding the Fourth Proportional to 2,100.73, 2,898.83 and 1,216.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.73 : 2,898.83 = 1,216.59 : x
2. Step 2: Convert to fraction form
   2,100.73/2,898.83 = 1,216.59/x
3. Step 3: Cross multiply
   2,100.73x = 2,898.83 × 1,216.59
4. Step 4: Simplify right side
   2,100.73x = 3,526,670.05
5. Step 5: Solve for x
   x = 3,526,670.05/2,100.73
6. Step 6: Final answer
   x = 1,678.79