Finding the Fourth Proportional to 1,150.29, 1,724.36 and 636.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.29 : 1,724.36 = 636.21 : x
2. Step 2: Convert to fraction form
   1,150.29/1,724.36 = 636.21/x
3. Step 3: Cross multiply
   1,150.29x = 1,724.36 × 636.21
4. Step 4: Simplify right side
   1,150.29x = 1,097,051.89
5. Step 5: Solve for x
   x = 1,097,051.89/1,150.29
6. Step 6: Final answer
   x = 953.72