Finding the Fourth Proportional to 2,164.82, 3,248.44 and 866.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,164.82 : 3,248.44 = 866.39 : x
2. Step 2: Convert to fraction form
   2,164.82/3,248.44 = 866.39/x
3. Step 3: Cross multiply
   2,164.82x = 3,248.44 × 866.39
4. Step 4: Simplify right side
   2,164.82x = 2,814,397.52
5. Step 5: Solve for x
   x = 2,814,397.52/2,164.82
6. Step 6: Final answer
   x = 1,300.06