Finding the Fourth Proportional to 1,116.73, 1,541.07 and 619.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.73 : 1,541.07 = 619.37 : x
2. Step 2: Convert to fraction form
   1,116.73/1,541.07 = 619.37/x
3. Step 3: Cross multiply
   1,116.73x = 1,541.07 × 619.37
4. Step 4: Simplify right side
   1,116.73x = 954,481.72
5. Step 5: Solve for x
   x = 954,481.72/1,116.73
6. Step 6: Final answer
   x = 854.71