Finding the Fourth Proportional to 2,391.83, 3,298.05 and 1,635.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,391.83 : 3,298.05 = 1,635.74 : x
2. Step 2: Convert to fraction form
   2,391.83/3,298.05 = 1,635.74/x
3. Step 3: Cross multiply
   2,391.83x = 3,298.05 × 1,635.74
4. Step 4: Simplify right side
   2,391.83x = 5,394,735.82
5. Step 5: Solve for x
   x = 5,394,735.82/2,391.83
6. Step 6: Final answer
   x = 2,255.49