Finding the Fourth Proportional to 3,868.38, 5,802.84 and 1,271.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.38 : 5,802.84 = 1,271.34 : x
2. Step 2: Convert to fraction form
   3,868.38/5,802.84 = 1,271.34/x
3. Step 3: Cross multiply
   3,868.38x = 5,802.84 × 1,271.34
4. Step 4: Simplify right side
   3,868.38x = 7,377,382.61
5. Step 5: Solve for x
   x = 7,377,382.61/3,868.38
6. Step 6: Final answer
   x = 1,907.10