Finding the Fourth Proportional to 2,075.28, 3,111.82 and 614.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075.28 : 3,111.82 = 614.22 : x
2. Step 2: Convert to fraction form
   2,075.28/3,111.82 = 614.22/x
3. Step 3: Cross multiply
   2,075.28x = 3,111.82 × 614.22
4. Step 4: Simplify right side
   2,075.28x = 1,911,342.08
5. Step 5: Solve for x
   x = 1,911,342.08/2,075.28
6. Step 6: Final answer
   x = 921.00