Finding the Fourth Proportional to 1,949.78, 2,924.58 and 717.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,949.78 : 2,924.58 = 717.10 : x
2. Step 2: Convert to fraction form
   1,949.78/2,924.58 = 717.10/x
3. Step 3: Cross multiply
   1,949.78x = 2,924.58 × 717.10
4. Step 4: Simplify right side
   1,949.78x = 2,097,216.32
5. Step 5: Solve for x
   x = 2,097,216.32/1,949.78
6. Step 6: Final answer
   x = 1,075.62