Finding the Fourth Proportional to 2,499.06, 3,749.94 and 1,039.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499.06 : 3,749.94 = 1,039.23 : x
2. Step 2: Convert to fraction form
   2,499.06/3,749.94 = 1,039.23/x
3. Step 3: Cross multiply
   2,499.06x = 3,749.94 × 1,039.23
4. Step 4: Simplify right side
   2,499.06x = 3,897,050.15
5. Step 5: Solve for x
   x = 3,897,050.15/2,499.06
6. Step 6: Final answer
   x = 1,559.41