Finding the Fourth Proportional to 2,340.69, 3,223.25 and 2,091.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,340.69 : 3,223.25 = 2,091.91 : x
2. Step 2: Convert to fraction form
   2,340.69/3,223.25 = 2,091.91/x
3. Step 3: Cross multiply
   2,340.69x = 3,223.25 × 2,091.91
4. Step 4: Simplify right side
   2,340.69x = 6,742,748.91
5. Step 5: Solve for x
   x = 6,742,748.91/2,340.69
6. Step 6: Final answer
   x = 2,880.67