Finding the Fourth Proportional to 3,005.91, 4,140.72 and 2,612.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,005.91 : 4,140.72 = 2,612.25 : x
2. Step 2: Convert to fraction form
   3,005.91/4,140.72 = 2,612.25/x
3. Step 3: Cross multiply
   3,005.91x = 4,140.72 × 2,612.25
4. Step 4: Simplify right side
   3,005.91x = 10,816,595.82
5. Step 5: Solve for x
   x = 10,816,595.82/3,005.91
6. Step 6: Final answer
   x = 3,598.44