Finding the Fourth Proportional to 2,770.16, 3,820.72 and 2,023.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,770.16 : 3,820.72 = 2,023.88 : x
2. Step 2: Convert to fraction form
   2,770.16/3,820.72 = 2,023.88/x
3. Step 3: Cross multiply
   2,770.16x = 3,820.72 × 2,023.88
4. Step 4: Simplify right side
   2,770.16x = 7,732,678.79
5. Step 5: Solve for x
   x = 7,732,678.79/2,770.16
6. Step 6: Final answer
   x = 2,791.42