Finding the Fourth Proportional to 2,284.12, 3,425.34 and 1,113.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,284.12 : 3,425.34 = 1,113.40 : x
2. Step 2: Convert to fraction form
   2,284.12/3,425.34 = 1,113.40/x
3. Step 3: Cross multiply
   2,284.12x = 3,425.34 × 1,113.40
4. Step 4: Simplify right side
   2,284.12x = 3,813,773.56
5. Step 5: Solve for x
   x = 3,813,773.56/2,284.12
6. Step 6: Final answer
   x = 1,669.69