Finding the Fourth Proportional to 1,152.83, 1,728.69 and 372.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.83 : 1,728.69 = 372.68 : x
2. Step 2: Convert to fraction form
   1,152.83/1,728.69 = 372.68/x
3. Step 3: Cross multiply
   1,152.83x = 1,728.69 × 372.68
4. Step 4: Simplify right side
   1,152.83x = 644,239.55
5. Step 5: Solve for x
   x = 644,239.55/1,152.83
6. Step 6: Final answer
   x = 558.84