Finding the Fourth Proportional to 1,152.24, 1,729.71 and 906.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.24 : 1,729.71 = 906.18 : x
2. Step 2: Convert to fraction form
   1,152.24/1,729.71 = 906.18/x
3. Step 3: Cross multiply
   1,152.24x = 1,729.71 × 906.18
4. Step 4: Simplify right side
   1,152.24x = 1,567,428.61
5. Step 5: Solve for x
   x = 1,567,428.61/1,152.24
6. Step 6: Final answer
   x = 1,360.33