Finding the Fourth Proportional to 1,077.37, 1,486.82 and 629.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,077.37 : 1,486.82 = 629.53 : x
2. Step 2: Convert to fraction form
   1,077.37/1,486.82 = 629.53/x
3. Step 3: Cross multiply
   1,077.37x = 1,486.82 × 629.53
4. Step 4: Simplify right side
   1,077.37x = 935,998.75
5. Step 5: Solve for x
   x = 935,998.75/1,077.37
6. Step 6: Final answer
   x = 868.78