Finding the Fourth Proportional to 2,103.05, 2,902.07 and 1,263.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.05 : 2,902.07 = 1,263.25 : x
2. Step 2: Convert to fraction form
   2,103.05/2,902.07 = 1,263.25/x
3. Step 3: Cross multiply
   2,103.05x = 2,902.07 × 1,263.25
4. Step 4: Simplify right side
   2,103.05x = 3,666,033.61
5. Step 5: Solve for x
   x = 3,666,033.61/2,103.05
6. Step 6: Final answer
   x = 1,743.20