Finding the Fourth Proportional to 2,559.63, 3,838.89 and 999.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,559.63 : 3,838.89 = 999.14 : x
2. Step 2: Convert to fraction form
   2,559.63/3,838.89 = 999.14/x
3. Step 3: Cross multiply
   2,559.63x = 3,838.89 × 999.14
4. Step 4: Simplify right side
   2,559.63x = 3,835,573.11
5. Step 5: Solve for x
   x = 3,835,573.11/2,559.63
6. Step 6: Final answer
   x = 1,498.49