Finding the Fourth Proportional to 1,636.50, 2,250.63 and 1,300.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636.50 : 2,250.63 = 1,300.98 : x
2. Step 2: Convert to fraction form
   1,636.50/2,250.63 = 1,300.98/x
3. Step 3: Cross multiply
   1,636.50x = 2,250.63 × 1,300.98
4. Step 4: Simplify right side
   1,636.50x = 2,928,024.62
5. Step 5: Solve for x
   x = 2,928,024.62/1,636.50
6. Step 6: Final answer
   x = 1,789.20