Finding the Fourth Proportional to 2,075.68, 3,114.42 and 980.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.68 : 3,114.42 = 980.02 : x
2. Step 2: Convert to fraction form
   2,075.68/3,114.42 = 980.02/x
3. Step 3: Cross multiply
   2,075.68x = 3,114.42 × 980.02
4. Step 4: Simplify right side
   2,075.68x = 3,052,193.89
5. Step 5: Solve for x
   x = 3,052,193.89/2,075.68
6. Step 6: Final answer
   x = 1,470.45