Finding the Fourth Proportional to 3,914.92, 5,870.76 and 1,318.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,914.92 : 5,870.76 = 1,318.06 : x
2. Step 2: Convert to fraction form
   3,914.92/5,870.76 = 1,318.06/x
3. Step 3: Cross multiply
   3,914.92x = 5,870.76 × 1,318.06
4. Step 4: Simplify right side
   3,914.92x = 7,738,013.93
5. Step 5: Solve for x
   x = 7,738,013.93/3,914.92
6. Step 6: Final answer
   x = 1,976.54