Finding the Fourth Proportional to 1,619.33, 2,429.91 and 682.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,619.33 : 2,429.91 = 682.17 : x
2. Step 2: Convert to fraction form
   1,619.33/2,429.91 = 682.17/x
3. Step 3: Cross multiply
   1,619.33x = 2,429.91 × 682.17
4. Step 4: Simplify right side
   1,619.33x = 1,657,611.70
5. Step 5: Solve for x
   x = 1,657,611.70/1,619.33
6. Step 6: Final answer
   x = 1,023.64