Finding the Fourth Proportional to 2,290.41, 3,160.89 and 1,346.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.41 : 3,160.89 = 1,346.49 : x
2. Step 2: Convert to fraction form
   2,290.41/3,160.89 = 1,346.49/x
3. Step 3: Cross multiply
   2,290.41x = 3,160.89 × 1,346.49
4. Step 4: Simplify right side
   2,290.41x = 4,256,106.78
5. Step 5: Solve for x
   x = 4,256,106.78/2,290.41
6. Step 6: Final answer
   x = 1,858.23