Finding the Fourth Proportional to 5,123.45, 7,684.32 and 1,425.17

Step by Step Solution

1. Step 1: Write the proportion equation
   5,123.45 : 7,684.32 = 1,425.17 : x
2. Step 2: Convert to fraction form
   5,123.45/7,684.32 = 1,425.17/x
3. Step 3: Cross multiply
   5,123.45x = 7,684.32 × 1,425.17
4. Step 4: Simplify right side
   5,123.45x = 10,951,462.33
5. Step 5: Solve for x
   x = 10,951,462.33/5,123.45
6. Step 6: Final answer
   x = 2,137.52