Finding the Fourth Proportional to 1,155.52, 1,731.32 and 569.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.52 : 1,731.32 = 569.73 : x
2. Step 2: Convert to fraction form
   1,155.52/1,731.32 = 569.73/x
3. Step 3: Cross multiply
   1,155.52x = 1,731.32 × 569.73
4. Step 4: Simplify right side
   1,155.52x = 986,393.93
5. Step 5: Solve for x
   x = 986,393.93/1,155.52
6. Step 6: Final answer
   x = 853.64