Finding the Fourth Proportional to 2,911.84, 4,018.56 and 1,732.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,911.84 : 4,018.56 = 1,732.72 : x
2. Step 2: Convert to fraction form
   2,911.84/4,018.56 = 1,732.72/x
3. Step 3: Cross multiply
   2,911.84x = 4,018.56 × 1,732.72
4. Step 4: Simplify right side
   2,911.84x = 6,963,039.28
5. Step 5: Solve for x
   x = 6,963,039.28/2,911.84
6. Step 6: Final answer
   x = 2,391.28