Finding the Fourth Proportional to 1,375.32, 2,063.18 and 726.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.32 : 2,063.18 = 726.10 : x
2. Step 2: Convert to fraction form
   1,375.32/2,063.18 = 726.10/x
3. Step 3: Cross multiply
   1,375.32x = 2,063.18 × 726.10
4. Step 4: Simplify right side
   1,375.32x = 1,498,075.00
5. Step 5: Solve for x
   x = 1,498,075.00/1,375.32
6. Step 6: Final answer
   x = 1,089.26