Finding the Fourth Proportional to 1,155.89, 1,734.62 and 608.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.89 : 1,734.62 = 608.47 : x
2. Step 2: Convert to fraction form
   1,155.89/1,734.62 = 608.47/x
3. Step 3: Cross multiply
   1,155.89x = 1,734.62 × 608.47
4. Step 4: Simplify right side
   1,155.89x = 1,055,456.85
5. Step 5: Solve for x
   x = 1,055,456.85/1,155.89
6. Step 6: Final answer
   x = 913.11