Finding the Fourth Proportional to 2,109.51, 3,165.39 and 794.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,109.51 : 3,165.39 = 794.16 : x
2. Step 2: Convert to fraction form
   2,109.51/3,165.39 = 794.16/x
3. Step 3: Cross multiply
   2,109.51x = 3,165.39 × 794.16
4. Step 4: Simplify right side
   2,109.51x = 2,513,826.12
5. Step 5: Solve for x
   x = 2,513,826.12/2,109.51
6. Step 6: Final answer
   x = 1,191.66