Finding the Fourth Proportional to 2,550.49, 3,521.31 and 1,607.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.49 : 3,521.31 = 1,607.58 : x
2. Step 2: Convert to fraction form
   2,550.49/3,521.31 = 1,607.58/x
3. Step 3: Cross multiply
   2,550.49x = 3,521.31 × 1,607.58
4. Step 4: Simplify right side
   2,550.49x = 5,660,781.50
5. Step 5: Solve for x
   x = 5,660,781.50/2,550.49
6. Step 6: Final answer
   x = 2,219.49