Finding the Fourth Proportional to 1,185.69, 1,636.29 and 654.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,185.69 : 1,636.29 = 654.59 : x
2. Step 2: Convert to fraction form
   1,185.69/1,636.29 = 654.59/x
3. Step 3: Cross multiply
   1,185.69x = 1,636.29 × 654.59
4. Step 4: Simplify right side
   1,185.69x = 1,071,089.25
5. Step 5: Solve for x
   x = 1,071,089.25/1,185.69
6. Step 6: Final answer
   x = 903.34