Finding the Fourth Proportional to 2,547.42, 3,820.50 and 1,086.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.42 : 3,820.50 = 1,086.42 : x
2. Step 2: Convert to fraction form
   2,547.42/3,820.50 = 1,086.42/x
3. Step 3: Cross multiply
   2,547.42x = 3,820.50 × 1,086.42
4. Step 4: Simplify right side
   2,547.42x = 4,150,667.61
5. Step 5: Solve for x
   x = 4,150,667.61/2,547.42
6. Step 6: Final answer
   x = 1,629.36