Finding the Fourth Proportional to 2,219.17, 3,062.51 and 1,224.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.17 : 3,062.51 = 1,224.46 : x
2. Step 2: Convert to fraction form
   2,219.17/3,062.51 = 1,224.46/x
3. Step 3: Cross multiply
   2,219.17x = 3,062.51 × 1,224.46
4. Step 4: Simplify right side
   2,219.17x = 3,749,899.56
5. Step 5: Solve for x
   x = 3,749,899.56/2,219.17
6. Step 6: Final answer
   x = 1,689.78