Finding the Fourth Proportional to 2,870.69, 4,300.55 and 1,944.65

Step by Step Solution

1. Step 1: Write the proportion equation
   2,870.69 : 4,300.55 = 1,944.65 : x
2. Step 2: Convert to fraction form
   2,870.69/4,300.55 = 1,944.65/x
3. Step 3: Cross multiply
   2,870.69x = 4,300.55 × 1,944.65
4. Step 4: Simplify right side
   2,870.69x = 8,363,072.88
5. Step 5: Solve for x
   x = 8,363,072.88/2,870.69
6. Step 6: Final answer
   x = 2,913.27