Finding the Fourth Proportional to 2,477.92, 3,419.40 and 1,692.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.92 : 3,419.40 = 1,692.16 : x
2. Step 2: Convert to fraction form
   2,477.92/3,419.40 = 1,692.16/x
3. Step 3: Cross multiply
   2,477.92x = 3,419.40 × 1,692.16
4. Step 4: Simplify right side
   2,477.92x = 5,786,171.90
5. Step 5: Solve for x
   x = 5,786,171.90/2,477.92
6. Step 6: Final answer
   x = 2,335.09