Finding the Fourth Proportional to 1,180.53, 1,629.59 and 787.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,180.53 : 1,629.59 = 787.41 : x
2. Step 2: Convert to fraction form
   1,180.53/1,629.59 = 787.41/x
3. Step 3: Cross multiply
   1,180.53x = 1,629.59 × 787.41
4. Step 4: Simplify right side
   1,180.53x = 1,283,151.52
5. Step 5: Solve for x
   x = 1,283,151.52/1,180.53
6. Step 6: Final answer
   x = 1,086.93