Finding the Fourth Proportional to 1,799.34, 2,696.68 and 811.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,799.34 : 2,696.68 = 811.42 : x
2. Step 2: Convert to fraction form
   1,799.34/2,696.68 = 811.42/x
3. Step 3: Cross multiply
   1,799.34x = 2,696.68 × 811.42
4. Step 4: Simplify right side
   1,799.34x = 2,188,140.09
5. Step 5: Solve for x
   x = 2,188,140.09/1,799.34
6. Step 6: Final answer
   x = 1,216.08