Finding the Fourth Proportional to 2,814.24, 3,880.86 and 1,820.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,814.24 : 3,880.86 = 1,820.04 : x
2. Step 2: Convert to fraction form
   2,814.24/3,880.86 = 1,820.04/x
3. Step 3: Cross multiply
   2,814.24x = 3,880.86 × 1,820.04
4. Step 4: Simplify right side
   2,814.24x = 7,063,320.43
5. Step 5: Solve for x
   x = 7,063,320.43/2,814.24
6. Step 6: Final answer
   x = 2,509.85