Finding the Fourth Proportional to 3,868.06, 5,802.12 and 1,271

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.06 : 5,802.12 = 1,271 : x
2. Step 2: Convert to fraction form
   3,868.06/5,802.12 = 1,271/x
3. Step 3: Cross multiply
   3,868.06x = 5,802.12 × 1,271
4. Step 4: Simplify right side
   3,868.06x = 7,374,494.52
5. Step 5: Solve for x
   x = 7,374,494.52/3,868.06
6. Step 6: Final answer
   x = 1,906.51