Finding the Fourth Proportional to 1,639.58, 2,453.59 and 1,343.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,639.58 : 2,453.59 = 1,343.52 : x
2. Step 2: Convert to fraction form
   1,639.58/2,453.59 = 1,343.52/x
3. Step 3: Cross multiply
   1,639.58x = 2,453.59 × 1,343.52
4. Step 4: Simplify right side
   1,639.58x = 3,296,443.88
5. Step 5: Solve for x
   x = 3,296,443.88/1,639.58
6. Step 6: Final answer
   x = 2,010.55