Finding the Fourth Proportional to 3,722.02, 5,136.42 and 2,043.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,722.02 : 5,136.42 = 2,043.61 : x
2. Step 2: Convert to fraction form
   3,722.02/5,136.42 = 2,043.61/x
3. Step 3: Cross multiply
   3,722.02x = 5,136.42 × 2,043.61
4. Step 4: Simplify right side
   3,722.02x = 10,496,839.28
5. Step 5: Solve for x
   x = 10,496,839.28/3,722.02
6. Step 6: Final answer
   x = 2,820.20