Finding the Fourth Proportional to 5,131.08, 7,080.39 and 2,892.69

Step by Step Solution

1. Step 1: Write the proportion equation
   5,131.08 : 7,080.39 = 2,892.69 : x
2. Step 2: Convert to fraction form
   5,131.08/7,080.39 = 2,892.69/x
3. Step 3: Cross multiply
   5,131.08x = 7,080.39 × 2,892.69
4. Step 4: Simplify right side
   5,131.08x = 20,481,373.35
5. Step 5: Solve for x
   x = 20,481,373.35/5,131.08
6. Step 6: Final answer
   x = 3,991.63