Finding the Fourth Proportional to 1,116.71, 1,541.08 and 619.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.71 : 1,541.08 = 619.33 : x
2. Step 2: Convert to fraction form
   1,116.71/1,541.08 = 619.33/x
3. Step 3: Cross multiply
   1,116.71x = 1,541.08 × 619.33
4. Step 4: Simplify right side
   1,116.71x = 954,443.25
5. Step 5: Solve for x
   x = 954,443.25/1,116.71
6. Step 6: Final answer
   x = 854.69