Finding the Fourth Proportional to 2,103.30, 2,902.77 and 1,264.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.30 : 2,902.77 = 1,264.28 : x
2. Step 2: Convert to fraction form
   2,103.30/2,902.77 = 1,264.28/x
3. Step 3: Cross multiply
   2,103.30x = 2,902.77 × 1,264.28
4. Step 4: Simplify right side
   2,103.30x = 3,669,899.54
5. Step 5: Solve for x
   x = 3,669,899.54/2,103.30
6. Step 6: Final answer
   x = 1,744.83