Finding the Fourth Proportional to 1,146.53, 1,719.89 and 569.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,146.53 : 1,719.89 = 569.09 : x
2. Step 2: Convert to fraction form
   1,146.53/1,719.89 = 569.09/x
3. Step 3: Cross multiply
   1,146.53x = 1,719.89 × 569.09
4. Step 4: Simplify right side
   1,146.53x = 978,772.20
5. Step 5: Solve for x
   x = 978,772.20/1,146.53
6. Step 6: Final answer
   x = 853.68