Finding the Fourth Proportional to 2,066.40, 2,849.58 and 1,830.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,066.40 : 2,849.58 = 1,830.42 : x
2. Step 2: Convert to fraction form
   2,066.40/2,849.58 = 1,830.42/x
3. Step 3: Cross multiply
   2,066.40x = 2,849.58 × 1,830.42
4. Step 4: Simplify right side
   2,066.40x = 5,215,928.22
5. Step 5: Solve for x
   x = 5,215,928.22/2,066.40
6. Step 6: Final answer
   x = 2,524.16