Finding the Fourth Proportional to 2,290.58, 3,160.61 and 1,333.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290.58 : 3,160.61 = 1,333.69 : x
2. Step 2: Convert to fraction form
   2,290.58/3,160.61 = 1,333.69/x
3. Step 3: Cross multiply
   2,290.58x = 3,160.61 × 1,333.69
4. Step 4: Simplify right side
   2,290.58x = 4,215,279.84
5. Step 5: Solve for x
   x = 4,215,279.84/2,290.58
6. Step 6: Final answer
   x = 1,840.27