Finding the Fourth Proportional to 5,248.83, 7,878.12 and 2,653.59

Step by Step Solution

1. Step 1: Write the proportion equation
   5,248.83 : 7,878.12 = 2,653.59 : x
2. Step 2: Convert to fraction form
   5,248.83/7,878.12 = 2,653.59/x
3. Step 3: Cross multiply
   5,248.83x = 7,878.12 × 2,653.59
4. Step 4: Simplify right side
   5,248.83x = 20,905,300.45
5. Step 5: Solve for x
   x = 20,905,300.45/5,248.83
6. Step 6: Final answer
   x = 3,982.85