Finding the Fourth Proportional to 3,870.33, 5,806.34 and 1,273.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,870.33 : 5,806.34 = 1,273.17 : x
2. Step 2: Convert to fraction form
   3,870.33/5,806.34 = 1,273.17/x
3. Step 3: Cross multiply
   3,870.33x = 5,806.34 × 1,273.17
4. Step 4: Simplify right side
   3,870.33x = 7,392,451.53
5. Step 5: Solve for x
   x = 7,392,451.53/3,870.33
6. Step 6: Final answer
   x = 1,910.03