Finding the Fourth Proportional to 2,639.31, 3,642.27 and 1,460.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,639.31 : 3,642.27 = 1,460.40 : x
2. Step 2: Convert to fraction form
   2,639.31/3,642.27 = 1,460.40/x
3. Step 3: Cross multiply
   2,639.31x = 3,642.27 × 1,460.40
4. Step 4: Simplify right side
   2,639.31x = 5,319,171.11
5. Step 5: Solve for x
   x = 5,319,171.11/2,639.31
6. Step 6: Final answer
   x = 2,015.36