Finding the Fourth Proportional to 2,290.56, 3,434.13 and 1,137.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.56 : 3,434.13 = 1,137.12 : x
2. Step 2: Convert to fraction form
   2,290.56/3,434.13 = 1,137.12/x
3. Step 3: Cross multiply
   2,290.56x = 3,434.13 × 1,137.12
4. Step 4: Simplify right side
   2,290.56x = 3,905,017.91
5. Step 5: Solve for x
   x = 3,905,017.91/2,290.56
6. Step 6: Final answer
   x = 1,704.83