Finding the Fourth Proportional to 2,075.02, 3,111.68 and 842.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.02 : 3,111.68 = 842.06 : x
2. Step 2: Convert to fraction form
   2,075.02/3,111.68 = 842.06/x
3. Step 3: Cross multiply
   2,075.02x = 3,111.68 × 842.06
4. Step 4: Simplify right side
   2,075.02x = 2,620,231.15
5. Step 5: Solve for x
   x = 2,620,231.15/2,075.02
6. Step 6: Final answer
   x = 1,262.75