Finding the Fourth Proportional to 5,085.11, 7,626.42 and 1,387.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,085.11 : 7,626.42 = 1,387.37 : x
2. Step 2: Convert to fraction form
   5,085.11/7,626.42 = 1,387.37/x
3. Step 3: Cross multiply
   5,085.11x = 7,626.42 × 1,387.37
4. Step 4: Simplify right side
   5,085.11x = 10,580,628.18
5. Step 5: Solve for x
   x = 10,580,628.18/5,085.11
6. Step 6: Final answer
   x = 2,080.71