Finding the Fourth Proportional to 1,116.56, 1,673.28 and 622.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.56 : 1,673.28 = 622.52 : x
2. Step 2: Convert to fraction form
   1,116.56/1,673.28 = 622.52/x
3. Step 3: Cross multiply
   1,116.56x = 1,673.28 × 622.52
4. Step 4: Simplify right side
   1,116.56x = 1,041,650.27
5. Step 5: Solve for x
   x = 1,041,650.27/1,116.56
6. Step 6: Final answer
   x = 932.91