Finding the Fourth Proportional to 1,100.59, 1,519.29 and 726.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.59 : 1,519.29 = 726.91 : x
2. Step 2: Convert to fraction form
   1,100.59/1,519.29 = 726.91/x
3. Step 3: Cross multiply
   1,100.59x = 1,519.29 × 726.91
4. Step 4: Simplify right side
   1,100.59x = 1,104,383.30
5. Step 5: Solve for x
   x = 1,104,383.30/1,100.59
6. Step 6: Final answer
   x = 1,003.45