Finding the Fourth Proportional to 2,636.76, 3,638.88 and 1,588.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,636.76 : 3,638.88 = 1,588.98 : x
2. Step 2: Convert to fraction form
   2,636.76/3,638.88 = 1,588.98/x
3. Step 3: Cross multiply
   2,636.76x = 3,638.88 × 1,588.98
4. Step 4: Simplify right side
   2,636.76x = 5,782,107.54
5. Step 5: Solve for x
   x = 5,782,107.54/2,636.76
6. Step 6: Final answer
   x = 2,192.88