Finding the Fourth Proportional to 1,819.32, 2,509.42 and 1,229.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,819.32 : 2,509.42 = 1,229.56 : x
2. Step 2: Convert to fraction form
   1,819.32/2,509.42 = 1,229.56/x
3. Step 3: Cross multiply
   1,819.32x = 2,509.42 × 1,229.56
4. Step 4: Simplify right side
   1,819.32x = 3,085,482.46
5. Step 5: Solve for x
   x = 3,085,482.46/1,819.32
6. Step 6: Final answer
   x = 1,695.95