Finding the Fourth Proportional to 3,561.39, 5,343.91 and 1,919.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,561.39 : 5,343.91 = 1,919.52 : x
2. Step 2: Convert to fraction form
   3,561.39/5,343.91 = 1,919.52/x
3. Step 3: Cross multiply
   3,561.39x = 5,343.91 × 1,919.52
4. Step 4: Simplify right side
   3,561.39x = 10,257,737.32
5. Step 5: Solve for x
   x = 10,257,737.32/3,561.39
6. Step 6: Final answer
   x = 2,880.26