Finding the Fourth Proportional to 1,044.42, 1,562.58 and 718.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,044.42 : 1,562.58 = 718.80 : x
2. Step 2: Convert to fraction form
   1,044.42/1,562.58 = 718.80/x
3. Step 3: Cross multiply
   1,044.42x = 1,562.58 × 718.80
4. Step 4: Simplify right side
   1,044.42x = 1,123,182.50
5. Step 5: Solve for x
   x = 1,123,182.50/1,044.42
6. Step 6: Final answer
   x = 1,075.41