Finding the Fourth Proportional to 3,868.46, 5,805.47 and 2,993.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.46 : 5,805.47 = 2,993.15 : x
2. Step 2: Convert to fraction form
   3,868.46/5,805.47 = 2,993.15/x
3. Step 3: Cross multiply
   3,868.46x = 5,805.47 × 2,993.15
4. Step 4: Simplify right side
   3,868.46x = 17,376,664.53
5. Step 5: Solve for x
   x = 17,376,664.53/3,868.46
6. Step 6: Final answer
   x = 4,491.88