Finding the Fourth Proportional to 2,080.51, 3,120.73 and 847.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,080.51 : 3,120.73 = 847.62 : x
2. Step 2: Convert to fraction form
   2,080.51/3,120.73 = 847.62/x
3. Step 3: Cross multiply
   2,080.51x = 3,120.73 × 847.62
4. Step 4: Simplify right side
   2,080.51x = 2,645,191.04
5. Step 5: Solve for x
   x = 2,645,191.04/2,080.51
6. Step 6: Final answer
   x = 1,271.42