Finding the Fourth Proportional to 2,839.52, 3,917.76 and 1,910.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,839.52 : 3,917.76 = 1,910.72 : x
2. Step 2: Convert to fraction form
   2,839.52/3,917.76 = 1,910.72/x
3. Step 3: Cross multiply
   2,839.52x = 3,917.76 × 1,910.72
4. Step 4: Simplify right side
   2,839.52x = 7,485,742.39
5. Step 5: Solve for x
   x = 7,485,742.39/2,839.52
6. Step 6: Final answer
   x = 2,636.27