Finding the Fourth Proportional to 3,710.14, 5,123.47 and 2,386.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,710.14 : 5,123.47 = 2,386.15 : x
2. Step 2: Convert to fraction form
   3,710.14/5,123.47 = 2,386.15/x
3. Step 3: Cross multiply
   3,710.14x = 5,123.47 × 2,386.15
4. Step 4: Simplify right side
   3,710.14x = 12,225,367.94
5. Step 5: Solve for x
   x = 12,225,367.94/3,710.14
6. Step 6: Final answer
   x = 3,295.12