Finding the Fourth Proportional to 2,005.91, 3,008.98 and 910.36

Step by Step Solution

1. Step 1: Write the proportion equation
   2,005.91 : 3,008.98 = 910.36 : x
2. Step 2: Convert to fraction form
   2,005.91/3,008.98 = 910.36/x
3. Step 3: Cross multiply
   2,005.91x = 3,008.98 × 910.36
4. Step 4: Simplify right side
   2,005.91x = 2,739,255.03
5. Step 5: Solve for x
   x = 2,739,255.03/2,005.91
6. Step 6: Final answer
   x = 1,365.59