Finding the Fourth Proportional to 2,559.20, 3,839.29 and 999.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.20 : 3,839.29 = 999.14 : x
2. Step 2: Convert to fraction form
   2,559.20/3,839.29 = 999.14/x
3. Step 3: Cross multiply
   2,559.20x = 3,839.29 × 999.14
4. Step 4: Simplify right side
   2,559.20x = 3,835,966.52
5. Step 5: Solve for x
   x = 3,835,966.52/2,559.20
6. Step 6: Final answer
   x = 1,498.90