Finding the Fourth Proportional to 2,311.72, 3,460.03 and 1,255.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.72 : 3,460.03 = 1,255.93 : x
2. Step 2: Convert to fraction form
   2,311.72/3,460.03 = 1,255.93/x
3. Step 3: Cross multiply
   2,311.72x = 3,460.03 × 1,255.93
4. Step 4: Simplify right side
   2,311.72x = 4,345,555.48
5. Step 5: Solve for x
   x = 4,345,555.48/2,311.72
6. Step 6: Final answer
   x = 1,879.80