Finding the Fourth Proportional to 2,100.29, 3,151.04 and 867.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.29 : 3,151.04 = 867.47 : x
2. Step 2: Convert to fraction form
   2,100.29/3,151.04 = 867.47/x
3. Step 3: Cross multiply
   2,100.29x = 3,151.04 × 867.47
4. Step 4: Simplify right side
   2,100.29x = 2,733,412.58
5. Step 5: Solve for x
   x = 2,733,412.58/2,100.29
6. Step 6: Final answer
   x = 1,301.45