Finding the Fourth Proportional to 2,275.72, 3,140.08 and 1,436.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.72 : 3,140.08 = 1,436.56 : x
2. Step 2: Convert to fraction form
   2,275.72/3,140.08 = 1,436.56/x
3. Step 3: Cross multiply
   2,275.72x = 3,140.08 × 1,436.56
4. Step 4: Simplify right side
   2,275.72x = 4,510,913.32
5. Step 5: Solve for x
   x = 4,510,913.32/2,275.72
6. Step 6: Final answer
   x = 1,982.19