Finding the Fourth Proportional to 2,449.69, 3,380.78 and 1,401.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,449.69 : 3,380.78 = 1,401.95 : x
2. Step 2: Convert to fraction form
   2,449.69/3,380.78 = 1,401.95/x
3. Step 3: Cross multiply
   2,449.69x = 3,380.78 × 1,401.95
4. Step 4: Simplify right side
   2,449.69x = 4,739,696.48
5. Step 5: Solve for x
   x = 4,739,696.48/2,449.69
6. Step 6: Final answer
   x = 1,934.82