Finding the Fourth Proportional to 2,808.47, 3,876.15 and 1,851.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,808.47 : 3,876.15 = 1,851.05 : x
2. Step 2: Convert to fraction form
   2,808.47/3,876.15 = 1,851.05/x
3. Step 3: Cross multiply
   2,808.47x = 3,876.15 × 1,851.05
4. Step 4: Simplify right side
   2,808.47x = 7,174,964.09
5. Step 5: Solve for x
   x = 7,174,964.09/2,808.47
6. Step 6: Final answer
   x = 2,554.76