Finding the Fourth Proportional to 1,117.30, 1,674.33 and 630.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,117.30 : 1,674.33 = 630.49 : x
2. Step 2: Convert to fraction form
   1,117.30/1,674.33 = 630.49/x
3. Step 3: Cross multiply
   1,117.30x = 1,674.33 × 630.49
4. Step 4: Simplify right side
   1,117.30x = 1,055,648.32
5. Step 5: Solve for x
   x = 1,055,648.32/1,117.30
6. Step 6: Final answer
   x = 944.82