Finding the Fourth Proportional to 1,819.56, 2,509.50 and 1,229.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,819.56 : 2,509.50 = 1,229.16 : x
2. Step 2: Convert to fraction form
   1,819.56/2,509.50 = 1,229.16/x
3. Step 3: Cross multiply
   1,819.56x = 2,509.50 × 1,229.16
4. Step 4: Simplify right side
   1,819.56x = 3,084,577.02
5. Step 5: Solve for x
   x = 3,084,577.02/1,819.56
6. Step 6: Final answer
   x = 1,695.23