Finding the Fourth Proportional to 2,512.57, 3,467.57 and 1,393.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,512.57 : 3,467.57 = 1,393.86 : x
2. Step 2: Convert to fraction form
   2,512.57/3,467.57 = 1,393.86/x
3. Step 3: Cross multiply
   2,512.57x = 3,467.57 × 1,393.86
4. Step 4: Simplify right side
   2,512.57x = 4,833,307.12
5. Step 5: Solve for x
   x = 4,833,307.12/2,512.57
6. Step 6: Final answer
   x = 1,923.65