Finding the Fourth Proportional to 5,552.84, 7,652.37 and 3,978.20

Step by Step Solution

1. Step 1: Write the proportion equation
   5,552.84 : 7,652.37 = 3,978.20 : x
2. Step 2: Convert to fraction form
   5,552.84/7,652.37 = 3,978.20/x
3. Step 3: Cross multiply
   5,552.84x = 7,652.37 × 3,978.20
4. Step 4: Simplify right side
   5,552.84x = 30,442,658.33
5. Step 5: Solve for x
   x = 30,442,658.33/5,552.84
6. Step 6: Final answer
   x = 5,482.36