Finding the Fourth Proportional to 2,454.78, 3,684.42 and 1,910.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,454.78 : 3,684.42 = 1,910.46 : x
2. Step 2: Convert to fraction form
   2,454.78/3,684.42 = 1,910.46/x
3. Step 3: Cross multiply
   2,454.78x = 3,684.42 × 1,910.46
4. Step 4: Simplify right side
   2,454.78x = 7,038,937.03
5. Step 5: Solve for x
   x = 7,038,937.03/2,454.78
6. Step 6: Final answer
   x = 2,867.44