Finding the Fourth Proportional to 3,925.38, 5,415.48 and 2,245.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,925.38 : 5,415.48 = 2,245.89 : x
2. Step 2: Convert to fraction form
   3,925.38/5,415.48 = 2,245.89/x
3. Step 3: Cross multiply
   3,925.38x = 5,415.48 × 2,245.89
4. Step 4: Simplify right side
   3,925.38x = 12,162,576.16
5. Step 5: Solve for x
   x = 12,162,576.16/3,925.38
6. Step 6: Final answer
   x = 3,098.45