Finding the Fourth Proportional to 2,751.81, 3,796.86 and 1,857.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,751.81 : 3,796.86 = 1,857.21 : x
2. Step 2: Convert to fraction form
   2,751.81/3,796.86 = 1,857.21/x
3. Step 3: Cross multiply
   2,751.81x = 3,796.86 × 1,857.21
4. Step 4: Simplify right side
   2,751.81x = 7,051,569.82
5. Step 5: Solve for x
   x = 7,051,569.82/2,751.81
6. Step 6: Final answer
   x = 2,562.52