Finding the Fourth Proportional to 1,119.56, 1,677.71 and 631.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,119.56 : 1,677.71 = 631.58 : x
2. Step 2: Convert to fraction form
   1,119.56/1,677.71 = 631.58/x
3. Step 3: Cross multiply
   1,119.56x = 1,677.71 × 631.58
4. Step 4: Simplify right side
   1,119.56x = 1,059,601.27
5. Step 5: Solve for x
   x = 1,059,601.27/1,119.56
6. Step 6: Final answer
   x = 946.45