Finding the Fourth Proportional to 2,789.12, 3,848.88 and 1,547.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,789.12 : 3,848.88 = 1,547.20 : x
2. Step 2: Convert to fraction form
   2,789.12/3,848.88 = 1,547.20/x
3. Step 3: Cross multiply
   2,789.12x = 3,848.88 × 1,547.20
4. Step 4: Simplify right side
   2,789.12x = 5,954,987.14
5. Step 5: Solve for x
   x = 5,954,987.14/2,789.12
6. Step 6: Final answer
   x = 2,135.08