Finding the Fourth Proportional to 3,422.72, 5,134.72 and 1,083.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,422.72 : 5,134.72 = 1,083.32 : x
2. Step 2: Convert to fraction form
   3,422.72/5,134.72 = 1,083.32/x
3. Step 3: Cross multiply
   3,422.72x = 5,134.72 × 1,083.32
4. Step 4: Simplify right side
   3,422.72x = 5,562,513.78
5. Step 5: Solve for x
   x = 5,562,513.78/3,422.72
6. Step 6: Final answer
   x = 1,625.17