Finding the Fourth Proportional to 1,180.50, 1,629.24 and 714.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.50 : 1,629.24 = 714.75 : x
2. Step 2: Convert to fraction form
   1,180.50/1,629.24 = 714.75/x
3. Step 3: Cross multiply
   1,180.50x = 1,629.24 × 714.75
4. Step 4: Simplify right side
   1,180.50x = 1,164,499.29
5. Step 5: Solve for x
   x = 1,164,499.29/1,180.50
6. Step 6: Final answer
   x = 986.45