Finding the Fourth Proportional to 3,917.96, 5,404.98 and 2,261

Step by Step Solution

1. Step 1: Write the proportion equation
   3,917.96 : 5,404.98 = 2,261 : x
2. Step 2: Convert to fraction form
   3,917.96/5,404.98 = 2,261/x
3. Step 3: Cross multiply
   3,917.96x = 5,404.98 × 2,261
4. Step 4: Simplify right side
   3,917.96x = 12,220,659.78
5. Step 5: Solve for x
   x = 12,220,659.78/3,917.96
6. Step 6: Final answer
   x = 3,119.14