Finding the Fourth Proportional to 3,598.20, 4,965.15 and 2,105.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,598.20 : 4,965.15 = 2,105.82 : x
2. Step 2: Convert to fraction form
   3,598.20/4,965.15 = 2,105.82/x
3. Step 3: Cross multiply
   3,598.20x = 4,965.15 × 2,105.82
4. Step 4: Simplify right side
   3,598.20x = 10,455,712.17
5. Step 5: Solve for x
   x = 10,455,712.17/3,598.20
6. Step 6: Final answer
   x = 2,905.82