Finding the Fourth Proportional to 2,677.31, 4,016.56 and 1,291.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,677.31 : 4,016.56 = 1,291.81 : x
2. Step 2: Convert to fraction form
   2,677.31/4,016.56 = 1,291.81/x
3. Step 3: Cross multiply
   2,677.31x = 4,016.56 × 1,291.81
4. Step 4: Simplify right side
   2,677.31x = 5,188,623.95
5. Step 5: Solve for x
   x = 5,188,623.95/2,677.31
6. Step 6: Final answer
   x = 1,938.00