Finding the Fourth Proportional to 2,219.61, 3,063.04 and 1,224.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.61 : 3,063.04 = 1,224.93 : x
2. Step 2: Convert to fraction form
   2,219.61/3,063.04 = 1,224.93/x
3. Step 3: Cross multiply
   2,219.61x = 3,063.04 × 1,224.93
4. Step 4: Simplify right side
   2,219.61x = 3,752,009.59
5. Step 5: Solve for x
   x = 3,752,009.59/2,219.61
6. Step 6: Final answer
   x = 1,690.39