Finding the Fourth Proportional to 3,303.61, 4,956.42 and 1,112.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,303.61 : 4,956.42 = 1,112.15 : x
2. Step 2: Convert to fraction form
   3,303.61/4,956.42 = 1,112.15/x
3. Step 3: Cross multiply
   3,303.61x = 4,956.42 × 1,112.15
4. Step 4: Simplify right side
   3,303.61x = 5,512,282.50
5. Step 5: Solve for x
   x = 5,512,282.50/3,303.61
6. Step 6: Final answer
   x = 1,668.57