Finding the Fourth Proportional to 3,861.38, 5,758.83 and 3,487.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,861.38 : 5,758.83 = 3,487.70 : x
2. Step 2: Convert to fraction form
   3,861.38/5,758.83 = 3,487.70/x
3. Step 3: Cross multiply
   3,861.38x = 5,758.83 × 3,487.70
4. Step 4: Simplify right side
   3,861.38x = 20,085,071.39
5. Step 5: Solve for x
   x = 20,085,071.39/3,861.38
6. Step 6: Final answer
   x = 5,201.53