Finding the Fourth Proportional to 2,751.57, 4,127.15 and 803.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,751.57 : 4,127.15 = 803.72 : x
2. Step 2: Convert to fraction form
   2,751.57/4,127.15 = 803.72/x
3. Step 3: Cross multiply
   2,751.57x = 4,127.15 × 803.72
4. Step 4: Simplify right side
   2,751.57x = 3,317,085.33
5. Step 5: Solve for x
   x = 3,317,085.33/2,751.57
6. Step 6: Final answer
   x = 1,205.52