Finding the Fourth Proportional to 2,060.73, 2,842.56 and 1,221.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,060.73 : 2,842.56 = 1,221.17 : x
2. Step 2: Convert to fraction form
   2,060.73/2,842.56 = 1,221.17/x
3. Step 3: Cross multiply
   2,060.73x = 2,842.56 × 1,221.17
4. Step 4: Simplify right side
   2,060.73x = 3,471,234.78
5. Step 5: Solve for x
   x = 3,471,234.78/2,060.73
6. Step 6: Final answer
   x = 1,684.47