Finding the Fourth Proportional to 3,911.58, 5,868.18 and 1,316.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,911.58 : 5,868.18 = 1,316.34 : x
2. Step 2: Convert to fraction form
   3,911.58/5,868.18 = 1,316.34/x
3. Step 3: Cross multiply
   3,911.58x = 5,868.18 × 1,316.34
4. Step 4: Simplify right side
   3,911.58x = 7,724,520.06
5. Step 5: Solve for x
   x = 7,724,520.06/3,911.58
6. Step 6: Final answer
   x = 1,974.78