Finding the Fourth Proportional to 2,419.82, 3,630.32 and 688.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,419.82 : 3,630.32 = 688.44 : x
2. Step 2: Convert to fraction form
   2,419.82/3,630.32 = 688.44/x
3. Step 3: Cross multiply
   2,419.82x = 3,630.32 × 688.44
4. Step 4: Simplify right side
   2,419.82x = 2,499,257.50
5. Step 5: Solve for x
   x = 2,499,257.50/2,419.82
6. Step 6: Final answer
   x = 1,032.83