Finding the Fourth Proportional to 1,636.52, 2,457.46 and 1,074.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,636.52 : 2,457.46 = 1,074.56 : x
2. Step 2: Convert to fraction form
   1,636.52/2,457.46 = 1,074.56/x
3. Step 3: Cross multiply
   1,636.52x = 2,457.46 × 1,074.56
4. Step 4: Simplify right side
   1,636.52x = 2,640,688.22
5. Step 5: Solve for x
   x = 2,640,688.22/1,636.52
6. Step 6: Final answer
   x = 1,613.60