Finding the Fourth Proportional to 2,677.06, 4,016.09 and 1,216.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,677.06 : 4,016.09 = 1,216.31 : x
2. Step 2: Convert to fraction form
   2,677.06/4,016.09 = 1,216.31/x
3. Step 3: Cross multiply
   2,677.06x = 4,016.09 × 1,216.31
4. Step 4: Simplify right side
   2,677.06x = 4,884,810.43
5. Step 5: Solve for x
   x = 4,884,810.43/2,677.06
6. Step 6: Final answer
   x = 1,824.69