Finding the Fourth Proportional to 3,648.42, 5,035.19 and 2,156.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.42 : 5,035.19 = 2,156.82 : x
2. Step 2: Convert to fraction form
   3,648.42/5,035.19 = 2,156.82/x
3. Step 3: Cross multiply
   3,648.42x = 5,035.19 × 2,156.82
4. Step 4: Simplify right side
   3,648.42x = 10,859,998.50
5. Step 5: Solve for x
   x = 10,859,998.50/3,648.42
6. Step 6: Final answer
   x = 2,976.63