Finding the Fourth Proportional to 2,290.62, 3,428.56 and 2,074.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.62 : 3,428.56 = 2,074.82 : x
2. Step 2: Convert to fraction form
   2,290.62/3,428.56 = 2,074.82/x
3. Step 3: Cross multiply
   2,290.62x = 3,428.56 × 2,074.82
4. Step 4: Simplify right side
   2,290.62x = 7,113,644.86
5. Step 5: Solve for x
   x = 7,113,644.86/2,290.62
6. Step 6: Final answer
   x = 3,105.55