Finding the Fourth Proportional to 2,840.86, 3,914.49 and 2,654.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,840.86 : 3,914.49 = 2,654.56 : x
2. Step 2: Convert to fraction form
   2,840.86/3,914.49 = 2,654.56/x
3. Step 3: Cross multiply
   2,840.86x = 3,914.49 × 2,654.56
4. Step 4: Simplify right side
   2,840.86x = 10,391,248.57
5. Step 5: Solve for x
   x = 10,391,248.57/2,840.86
6. Step 6: Final answer
   x = 3,657.78