Finding the Fourth Proportional to 2,654.44, 3,659.46 and 2,117.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.44 : 3,659.46 = 2,117.89 : x
2. Step 2: Convert to fraction form
   2,654.44/3,659.46 = 2,117.89/x
3. Step 3: Cross multiply
   2,654.44x = 3,659.46 × 2,117.89
4. Step 4: Simplify right side
   2,654.44x = 7,750,332.30
5. Step 5: Solve for x
   x = 7,750,332.30/2,654.44
6. Step 6: Final answer
   x = 2,919.77