Finding the Fourth Proportional to 2,101.51, 3,149.82 and 867.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,101.51 : 3,149.82 = 867.34 : x
2. Step 2: Convert to fraction form
   2,101.51/3,149.82 = 867.34/x
3. Step 3: Cross multiply
   2,101.51x = 3,149.82 × 867.34
4. Step 4: Simplify right side
   2,101.51x = 2,731,964.88
5. Step 5: Solve for x
   x = 2,731,964.88/2,101.51
6. Step 6: Final answer
   x = 1,300.00