Finding the Fourth Proportional to 2,888.16, 4,330.82 and 1,039

Step by Step Solution

1. Step 1: Write the proportion equation
   2,888.16 : 4,330.82 = 1,039 : x
2. Step 2: Convert to fraction form
   2,888.16/4,330.82 = 1,039/x
3. Step 3: Cross multiply
   2,888.16x = 4,330.82 × 1,039
4. Step 4: Simplify right side
   2,888.16x = 4,499,721.98
5. Step 5: Solve for x
   x = 4,499,721.98/2,888.16
6. Step 6: Final answer
   x = 1,557.99