Finding the Fourth Proportional to 2,100.25, 3,150.24 and 867.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.25 : 3,150.24 = 867.34 : x
2. Step 2: Convert to fraction form
   2,100.25/3,150.24 = 867.34/x
3. Step 3: Cross multiply
   2,100.25x = 3,150.24 × 867.34
4. Step 4: Simplify right side
   2,100.25x = 2,732,329.16
5. Step 5: Solve for x
   x = 2,732,329.16/2,100.25
6. Step 6: Final answer
   x = 1,300.95