Finding the Fourth Proportional to 3,920.55, 5,410.83 and 2,428.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,920.55 : 5,410.83 = 2,428.94 : x
2. Step 2: Convert to fraction form
   3,920.55/5,410.83 = 2,428.94/x
3. Step 3: Cross multiply
   3,920.55x = 5,410.83 × 2,428.94
4. Step 4: Simplify right side
   3,920.55x = 13,142,554.37
5. Step 5: Solve for x
   x = 13,142,554.37/3,920.55
6. Step 6: Final answer
   x = 3,352.22