Finding the Fourth Proportional to 2,219.63, 3,063.23 and 1,275.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,219.63 : 3,063.23 = 1,275.57 : x
2. Step 2: Convert to fraction form
   2,219.63/3,063.23 = 1,275.57/x
3. Step 3: Cross multiply
   2,219.63x = 3,063.23 × 1,275.57
4. Step 4: Simplify right side
   2,219.63x = 3,907,357.91
5. Step 5: Solve for x
   x = 3,907,357.91/2,219.63
6. Step 6: Final answer
   x = 1,760.37