Finding the Fourth Proportional to 1,498.42, 2,246.55 and 717.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,498.42 : 2,246.55 = 717.31 : x
2. Step 2: Convert to fraction form
   1,498.42/2,246.55 = 717.31/x
3. Step 3: Cross multiply
   1,498.42x = 2,246.55 × 717.31
4. Step 4: Simplify right side
   1,498.42x = 1,611,472.78
5. Step 5: Solve for x
   x = 1,611,472.78/1,498.42
6. Step 6: Final answer
   x = 1,075.45