Finding the Fourth Proportional to 2,639.61, 3,642.81 and 1,460.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639.61 : 3,642.81 = 1,460.79 : x
2. Step 2: Convert to fraction form
   2,639.61/3,642.81 = 1,460.79/x
3. Step 3: Cross multiply
   2,639.61x = 3,642.81 × 1,460.79
4. Step 4: Simplify right side
   2,639.61x = 5,321,380.42
5. Step 5: Solve for x
   x = 5,321,380.42/2,639.61
6. Step 6: Final answer
   x = 2,015.97