Finding the Fourth Proportional to 2,109.34, 3,178.28 and 1,752.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.34 : 3,178.28 = 1,752.13 : x
2. Step 2: Convert to fraction form
   2,109.34/3,178.28 = 1,752.13/x
3. Step 3: Cross multiply
   2,109.34x = 3,178.28 × 1,752.13
4. Step 4: Simplify right side
   2,109.34x = 5,568,759.74
5. Step 5: Solve for x
   x = 5,568,759.74/2,109.34
6. Step 6: Final answer
   x = 2,640.05