Finding the Fourth Proportional to 2,219.06, 3,062.34 and 1,224.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.06 : 3,062.34 = 1,224.42 : x
2. Step 2: Convert to fraction form
   2,219.06/3,062.34 = 1,224.42/x
3. Step 3: Cross multiply
   2,219.06x = 3,062.34 × 1,224.42
4. Step 4: Simplify right side
   2,219.06x = 3,749,590.34
5. Step 5: Solve for x
   x = 3,749,590.34/2,219.06
6. Step 6: Final answer
   x = 1,689.72