Finding the Fourth Proportional to 6,128.32, 9,189.72 and 1,744.78

Step by Step Solution

1. Step 1: Write the proportion equation
   6,128.32 : 9,189.72 = 1,744.78 : x
2. Step 2: Convert to fraction form
   6,128.32/9,189.72 = 1,744.78/x
3. Step 3: Cross multiply
   6,128.32x = 9,189.72 × 1,744.78
4. Step 4: Simplify right side
   6,128.32x = 16,034,039.66
5. Step 5: Solve for x
   x = 16,034,039.66/6,128.32
6. Step 6: Final answer
   x = 2,616.38