Finding the Fourth Proportional to 1,417.31, 2,123.92 and 799.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,417.31 : 2,123.92 = 799.71 : x
2. Step 2: Convert to fraction form
   1,417.31/2,123.92 = 799.71/x
3. Step 3: Cross multiply
   1,417.31x = 2,123.92 × 799.71
4. Step 4: Simplify right side
   1,417.31x = 1,698,522.05
5. Step 5: Solve for x
   x = 1,698,522.05/1,417.31
6. Step 6: Final answer
   x = 1,198.41