Finding the Fourth Proportional to 2,639.82, 3,642.58 and 1,505.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639.82 : 3,642.58 = 1,505.52 : x
2. Step 2: Convert to fraction form
   2,639.82/3,642.58 = 1,505.52/x
3. Step 3: Cross multiply
   2,639.82x = 3,642.58 × 1,505.52
4. Step 4: Simplify right side
   2,639.82x = 5,483,977.04
5. Step 5: Solve for x
   x = 5,483,977.04/2,639.82
6. Step 6: Final answer
   x = 2,077.41