Finding the Fourth Proportional to 3,851.56, 5,777.94 and 1,253.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,851.56 : 5,777.94 = 1,253.89 : x
2. Step 2: Convert to fraction form
   3,851.56/5,777.94 = 1,253.89/x
3. Step 3: Cross multiply
   3,851.56x = 5,777.94 × 1,253.89
4. Step 4: Simplify right side
   3,851.56x = 7,244,901.19
5. Step 5: Solve for x
   x = 7,244,901.19/3,851.56
6. Step 6: Final answer
   x = 1,881.03