Finding the Fourth Proportional to 1,108.83, 1,663.98 and 719.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,108.83 : 1,663.98 = 719.01 : x
2. Step 2: Convert to fraction form
   1,108.83/1,663.98 = 719.01/x
3. Step 3: Cross multiply
   1,108.83x = 1,663.98 × 719.01
4. Step 4: Simplify right side
   1,108.83x = 1,196,418.26
5. Step 5: Solve for x
   x = 1,196,418.26/1,108.83
6. Step 6: Final answer
   x = 1,078.99