Finding the Fourth Proportional to 2,919.32, 4,379.49 and 1,275.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,919.32 : 4,379.49 = 1,275.83 : x
2. Step 2: Convert to fraction form
   2,919.32/4,379.49 = 1,275.83/x
3. Step 3: Cross multiply
   2,919.32x = 4,379.49 × 1,275.83
4. Step 4: Simplify right side
   2,919.32x = 5,587,484.73
5. Step 5: Solve for x
   x = 5,587,484.73/2,919.32
6. Step 6: Final answer
   x = 1,913.97