Finding the Fourth Proportional to 4,978.48, 7,451.52 and 3,021.52

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.48 : 7,451.52 = 3,021.52 : x
2. Step 2: Convert to fraction form
   4,978.48/7,451.52 = 3,021.52/x
3. Step 3: Cross multiply
   4,978.48x = 7,451.52 × 3,021.52
4. Step 4: Simplify right side
   4,978.48x = 22,514,916.71
5. Step 5: Solve for x
   x = 22,514,916.71/4,978.48
6. Step 6: Final answer
   x = 4,522.45