Finding the Fourth Proportional to 2,910.58, 4,017.54 and 2,164.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,910.58 : 4,017.54 = 2,164.30 : x
2. Step 2: Convert to fraction form
   2,910.58/4,017.54 = 2,164.30/x
3. Step 3: Cross multiply
   2,910.58x = 4,017.54 × 2,164.30
4. Step 4: Simplify right side
   2,910.58x = 8,695,161.82
5. Step 5: Solve for x
   x = 8,695,161.82/2,910.58
6. Step 6: Final answer
   x = 2,987.43