Finding the Fourth Proportional to 2,868.61, 4,301.49 and 1,019.44

Step by Step Solution

1. Step 1: Write the proportion equation
   2,868.61 : 4,301.49 = 1,019.44 : x
2. Step 2: Convert to fraction form
   2,868.61/4,301.49 = 1,019.44/x
3. Step 3: Cross multiply
   2,868.61x = 4,301.49 × 1,019.44
4. Step 4: Simplify right side
   2,868.61x = 4,385,105.87
5. Step 5: Solve for x
   x = 4,385,105.87/2,868.61
6. Step 6: Final answer
   x = 1,528.65