Finding the Fourth Proportional to 2,101.01, 3,150.77 and 867.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.01 : 3,150.77 = 867.87 : x
2. Step 2: Convert to fraction form
   2,101.01/3,150.77 = 867.87/x
3. Step 3: Cross multiply
   2,101.01x = 3,150.77 × 867.87
4. Step 4: Simplify right side
   2,101.01x = 2,734,454.42
5. Step 5: Solve for x
   x = 2,734,454.42/2,101.01
6. Step 6: Final answer
   x = 1,301.50