Finding the Fourth Proportional to 1,185.62, 1,636.62 and 1,061.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.62 : 1,636.62 = 1,061.07 : x
2. Step 2: Convert to fraction form
   1,185.62/1,636.62 = 1,061.07/x
3. Step 3: Cross multiply
   1,185.62x = 1,636.62 × 1,061.07
4. Step 4: Simplify right side
   1,185.62x = 1,736,559.71
5. Step 5: Solve for x
   x = 1,736,559.71/1,185.62
6. Step 6: Final answer
   x = 1,464.68