Finding the Fourth Proportional to 2,109.16, 2,911.70 and 1,323.64

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.16 : 2,911.70 = 1,323.64 : x
2. Step 2: Convert to fraction form
   2,109.16/2,911.70 = 1,323.64/x
3. Step 3: Cross multiply
   2,109.16x = 2,911.70 × 1,323.64
4. Step 4: Simplify right side
   2,109.16x = 3,854,042.59
5. Step 5: Solve for x
   x = 3,854,042.59/2,109.16
6. Step 6: Final answer
   x = 1,827.29