Finding the Fourth Proportional to 5,278.33, 7,914.56 and 2,160.52

Step by Step Solution

1. Step 1: Write the proportion equation
   5,278.33 : 7,914.56 = 2,160.52 : x
2. Step 2: Convert to fraction form
   5,278.33/7,914.56 = 2,160.52/x
3. Step 3: Cross multiply
   5,278.33x = 7,914.56 × 2,160.52
4. Step 4: Simplify right side
   5,278.33x = 17,099,565.17
5. Step 5: Solve for x
   x = 17,099,565.17/5,278.33
6. Step 6: Final answer
   x = 3,239.58