Finding the Fourth Proportional to 5,107.89, 7,662.56 and 1,820.01

Step by Step Solution

1. Step 1: Write the proportion equation
   5,107.89 : 7,662.56 = 1,820.01 : x
2. Step 2: Convert to fraction form
   5,107.89/7,662.56 = 1,820.01/x
3. Step 3: Cross multiply
   5,107.89x = 7,662.56 × 1,820.01
4. Step 4: Simplify right side
   5,107.89x = 13,945,926.73
5. Step 5: Solve for x
   x = 13,945,926.73/5,107.89
6. Step 6: Final answer
   x = 2,730.27