Finding the Fourth Proportional to 1,385.98, 2,076.17 and 799.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385.98 : 2,076.17 = 799.29 : x
2. Step 2: Convert to fraction form
   1,385.98/2,076.17 = 799.29/x
3. Step 3: Cross multiply
   1,385.98x = 2,076.17 × 799.29
4. Step 4: Simplify right side
   1,385.98x = 1,659,457.92
5. Step 5: Solve for x
   x = 1,659,457.92/1,385.98
6. Step 6: Final answer
   x = 1,197.32