Finding the Fourth Proportional to 2,275.47, 3,145.15 and 2,075.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.47 : 3,145.15 = 2,075.55 : x
2. Step 2: Convert to fraction form
   2,275.47/3,145.15 = 2,075.55/x
3. Step 3: Cross multiply
   2,275.47x = 3,145.15 × 2,075.55
4. Step 4: Simplify right side
   2,275.47x = 6,527,921.57
5. Step 5: Solve for x
   x = 6,527,921.57/2,275.47
6. Step 6: Final answer
   x = 2,868.83