Finding the Fourth Proportional to 2,219.29, 3,062.57 and 1,224.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.29 : 3,062.57 = 1,224.51 : x
2. Step 2: Convert to fraction form
   2,219.29/3,062.57 = 1,224.51/x
3. Step 3: Cross multiply
   2,219.29x = 3,062.57 × 1,224.51
4. Step 4: Simplify right side
   2,219.29x = 3,750,147.59
5. Step 5: Solve for x
   x = 3,750,147.59/2,219.29
6. Step 6: Final answer
   x = 1,689.80