Finding the Fourth Proportional to 3,346.10, 5,018.43 and 1,124.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,346.10 : 5,018.43 = 1,124.72 : x
2. Step 2: Convert to fraction form
   3,346.10/5,018.43 = 1,124.72/x
3. Step 3: Cross multiply
   3,346.10x = 5,018.43 × 1,124.72
4. Step 4: Simplify right side
   3,346.10x = 5,644,303.50
5. Step 5: Solve for x
   x = 5,644,303.50/3,346.10
6. Step 6: Final answer
   x = 1,686.83