Finding the Fourth Proportional to 1,636.10, 2,296.30 and 1,636.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636.10 : 2,296.30 = 1,636.10 : x
2. Step 2: Convert to fraction form
   1,636.10/2,296.30 = 1,636.10/x
3. Step 3: Cross multiply
   1,636.10x = 2,296.30 × 1,636.10
4. Step 4: Simplify right side
   1,636.10x = 3,756,976.43
5. Step 5: Solve for x
   x = 3,756,976.43/1,636.10
6. Step 6: Final answer
   x = 2,296.30