Finding the Fourth Proportional to 2,634.60, 3,633.30 and 1,639.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,634.60 : 3,633.30 = 1,639.50 : x
2. Step 2: Convert to fraction form
   2,634.60/3,633.30 = 1,639.50/x
3. Step 3: Cross multiply
   2,634.60x = 3,633.30 × 1,639.50
4. Step 4: Simplify right side
   2,634.60x = 5,956,795.35
5. Step 5: Solve for x
   x = 5,956,795.35/2,634.60
6. Step 6: Final answer
   x = 2,260.99