Finding the Fourth Proportional to 2,547.39, 3,825.63 and 2,086.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.39 : 3,825.63 = 2,086.05 : x
2. Step 2: Convert to fraction form
   2,547.39/3,825.63 = 2,086.05/x
3. Step 3: Cross multiply
   2,547.39x = 3,825.63 × 2,086.05
4. Step 4: Simplify right side
   2,547.39x = 7,980,455.46
5. Step 5: Solve for x
   x = 7,980,455.46/2,547.39
6. Step 6: Final answer
   x = 3,132.80