Finding the Fourth Proportional to 2,075.22, 3,111.01 and 979.90

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.22 : 3,111.01 = 979.90 : x
2. Step 2: Convert to fraction form
   2,075.22/3,111.01 = 979.90/x
3. Step 3: Cross multiply
   2,075.22x = 3,111.01 × 979.90
4. Step 4: Simplify right side
   2,075.22x = 3,048,468.47
5. Step 5: Solve for x
   x = 3,048,468.47/2,075.22
6. Step 6: Final answer
   x = 1,468.99