Finding the Fourth Proportional to 2,380.61, 3,286.77 and 1,634.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,380.61 : 3,286.77 = 1,634.33 : x
2. Step 2: Convert to fraction form
   2,380.61/3,286.77 = 1,634.33/x
3. Step 3: Cross multiply
   2,380.61x = 3,286.77 × 1,634.33
4. Step 4: Simplify right side
   2,380.61x = 5,371,666.81
5. Step 5: Solve for x
   x = 5,371,666.81/2,380.61
6. Step 6: Final answer
   x = 2,256.42