Finding the Fourth Proportional to 801.83, 1,106.72 and 718.79

Step by Step Solution

1. Step 1: Write the proportion equation
   801.83 : 1,106.72 = 718.79 : x
2. Step 2: Convert to fraction form
   801.83/1,106.72 = 718.79/x
3. Step 3: Cross multiply
   801.83x = 1,106.72 × 718.79
4. Step 4: Simplify right side
   801.83x = 795,490.14
5. Step 5: Solve for x
   x = 795,490.14/801.83
6. Step 6: Final answer
   x = 992.10