Finding the Fourth Proportional to 3,917.67, 5,406.98 and 2,426.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,917.67 : 5,406.98 = 2,426.37 : x
2. Step 2: Convert to fraction form
   3,917.67/5,406.98 = 2,426.37/x
3. Step 3: Cross multiply
   3,917.67x = 5,406.98 × 2,426.37
4. Step 4: Simplify right side
   3,917.67x = 13,119,321.93
5. Step 5: Solve for x
   x = 13,119,321.93/3,917.67
6. Step 6: Final answer
   x = 3,348.76