Finding the Fourth Proportional to 2,099.71, 3,150.18 and 867.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,099.71 : 3,150.18 = 867.19 : x
2. Step 2: Convert to fraction form
   2,099.71/3,150.18 = 867.19/x
3. Step 3: Cross multiply
   2,099.71x = 3,150.18 × 867.19
4. Step 4: Simplify right side
   2,099.71x = 2,731,796.72
5. Step 5: Solve for x
   x = 2,731,796.72/2,099.71
6. Step 6: Final answer
   x = 1,301.04