Finding the Fourth Proportional to 1,152.52, 1,727.18 and 631.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,152.52 : 1,727.18 = 631.89 : x
2. Step 2: Convert to fraction form
   1,152.52/1,727.18 = 631.89/x
3. Step 3: Cross multiply
   1,152.52x = 1,727.18 × 631.89
4. Step 4: Simplify right side
   1,152.52x = 1,091,389.35
5. Step 5: Solve for x
   x = 1,091,389.35/1,152.52
6. Step 6: Final answer
   x = 946.96