Finding the Fourth Proportional to 5,091.80, 7,025.86 and 2,853.47

Step by Step Solution

1. Step 1: Write the proportion equation
   5,091.80 : 7,025.86 = 2,853.47 : x
2. Step 2: Convert to fraction form
   5,091.80/7,025.86 = 2,853.47/x
3. Step 3: Cross multiply
   5,091.80x = 7,025.86 × 2,853.47
4. Step 4: Simplify right side
   5,091.80x = 20,048,091.17
5. Step 5: Solve for x
   x = 20,048,091.17/5,091.80
6. Step 6: Final answer
   x = 3,937.33