Finding the Fourth Proportional to 1,152.69, 1,729.72 and 605.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.69 : 1,729.72 = 605.03 : x
2. Step 2: Convert to fraction form
   1,152.69/1,729.72 = 605.03/x
3. Step 3: Cross multiply
   1,152.69x = 1,729.72 × 605.03
4. Step 4: Simplify right side
   1,152.69x = 1,046,521.20
5. Step 5: Solve for x
   x = 1,046,521.20/1,152.69
6. Step 6: Final answer
   x = 907.90