Finding the Fourth Proportional to 2,219.82, 3,063.12 and 1,225.08

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.82 : 3,063.12 = 1,225.08 : x
2. Step 2: Convert to fraction form
   2,219.82/3,063.12 = 1,225.08/x
3. Step 3: Cross multiply
   2,219.82x = 3,063.12 × 1,225.08
4. Step 4: Simplify right side
   2,219.82x = 3,752,567.05
5. Step 5: Solve for x
   x = 3,752,567.05/2,219.82
6. Step 6: Final answer
   x = 1,690.48