Finding the Fourth Proportional to 1,116.83, 1,541.33 and 619.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,116.83 : 1,541.33 = 619.49 : x
2. Step 2: Convert to fraction form
   1,116.83/1,541.33 = 619.49/x
3. Step 3: Cross multiply
   1,116.83x = 1,541.33 × 619.49
4. Step 4: Simplify right side
   1,116.83x = 954,827.72
5. Step 5: Solve for x
   x = 954,827.72/1,116.83
6. Step 6: Final answer
   x = 854.95