Finding the Fourth Proportional to 2,003.35, 2,763.76 and 1,256.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,003.35 : 2,763.76 = 1,256.80 : x
2. Step 2: Convert to fraction form
   2,003.35/2,763.76 = 1,256.80/x
3. Step 3: Cross multiply
   2,003.35x = 2,763.76 × 1,256.80
4. Step 4: Simplify right side
   2,003.35x = 3,473,493.57
5. Step 5: Solve for x
   x = 3,473,493.57/2,003.35
6. Step 6: Final answer
   x = 1,733.84