Finding the Fourth Proportional to 1,092.69, 1,507.48 and 719.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,092.69 : 1,507.48 = 719.86 : x
2. Step 2: Convert to fraction form
   1,092.69/1,507.48 = 719.86/x
3. Step 3: Cross multiply
   1,092.69x = 1,507.48 × 719.86
4. Step 4: Simplify right side
   1,092.69x = 1,085,179.22
5. Step 5: Solve for x
   x = 1,085,179.22/1,092.69
6. Step 6: Final answer
   x = 993.13