Finding the Fourth Proportional to 3,933.32, 5,427.89 and 2,164.91

Step by Step Solution

1. Step 1: Write the proportion equation
   3,933.32 : 5,427.89 = 2,164.91 : x
2. Step 2: Convert to fraction form
   3,933.32/5,427.89 = 2,164.91/x
3. Step 3: Cross multiply
   3,933.32x = 5,427.89 × 2,164.91
4. Step 4: Simplify right side
   3,933.32x = 11,750,893.34
5. Step 5: Solve for x
   x = 11,750,893.34/3,933.32
6. Step 6: Final answer
   x = 2,987.53