Finding the Fourth Proportional to 2,426.76, 3,642.63 and 1,636.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,426.76 : 3,642.63 = 1,636.05 : x
2. Step 2: Convert to fraction form
   2,426.76/3,642.63 = 1,636.05/x
3. Step 3: Cross multiply
   2,426.76x = 3,642.63 × 1,636.05
4. Step 4: Simplify right side
   2,426.76x = 5,959,524.81
5. Step 5: Solve for x
   x = 5,959,524.81/2,426.76
6. Step 6: Final answer
   x = 2,455.75