Finding the Fourth Proportional to 2,075.10, 3,103.65 and 1,857.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.10 : 3,103.65 = 1,857.30 : x
2. Step 2: Convert to fraction form
   2,075.10/3,103.65 = 1,857.30/x
3. Step 3: Cross multiply
   2,075.10x = 3,103.65 × 1,857.30
4. Step 4: Simplify right side
   2,075.10x = 5,764,409.15
5. Step 5: Solve for x
   x = 5,764,409.15/2,075.10
6. Step 6: Final answer
   x = 2,777.89