Finding the Fourth Proportional to 2,605.86, 3,908.70 and 1,003.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605.86 : 3,908.70 = 1,003.23 : x
2. Step 2: Convert to fraction form
   2,605.86/3,908.70 = 1,003.23/x
3. Step 3: Cross multiply
   2,605.86x = 3,908.70 × 1,003.23
4. Step 4: Simplify right side
   2,605.86x = 3,921,325.10
5. Step 5: Solve for x
   x = 3,921,325.10/2,605.86
6. Step 6: Final answer
   x = 1,504.81