Finding the Fourth Proportional to 1,636.25, 2,252.89 and 1,444.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636.25 : 2,252.89 = 1,444.42 : x
2. Step 2: Convert to fraction form
   1,636.25/2,252.89 = 1,444.42/x
3. Step 3: Cross multiply
   1,636.25x = 2,252.89 × 1,444.42
4. Step 4: Simplify right side
   1,636.25x = 3,254,119.37
5. Step 5: Solve for x
   x = 3,254,119.37/1,636.25
6. Step 6: Final answer
   x = 1,988.77