Finding the Fourth Proportional to 2,290.16, 3,433.68 and 1,056.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.16 : 3,433.68 = 1,056.89 : x
2. Step 2: Convert to fraction form
   2,290.16/3,433.68 = 1,056.89/x
3. Step 3: Cross multiply
   2,290.16x = 3,433.68 × 1,056.89
4. Step 4: Simplify right side
   2,290.16x = 3,629,004.89
5. Step 5: Solve for x
   x = 3,629,004.89/2,290.16
6. Step 6: Final answer
   x = 1,584.61