Finding the Fourth Proportional to 1,116.30, 1,672.83 and 629.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.30 : 1,672.83 = 629.49 : x
2. Step 2: Convert to fraction form
   1,116.30/1,672.83 = 629.49/x
3. Step 3: Cross multiply
   1,116.30x = 1,672.83 × 629.49
4. Step 4: Simplify right side
   1,116.30x = 1,053,029.76
5. Step 5: Solve for x
   x = 1,053,029.76/1,116.30
6. Step 6: Final answer
   x = 943.32