Finding the Fourth Proportional to 2,677.95, 4,018.90 and 1,272.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,677.95 : 4,018.90 = 1,272.37 : x
2. Step 2: Convert to fraction form
   2,677.95/4,018.90 = 1,272.37/x
3. Step 3: Cross multiply
   2,677.95x = 4,018.90 × 1,272.37
4. Step 4: Simplify right side
   2,677.95x = 5,113,527.79
5. Step 5: Solve for x
   x = 5,113,527.79/2,677.95
6. Step 6: Final answer
   x = 1,909.49