Finding the Fourth Proportional to 4,978.24, 7,467.78 and 1,515.52

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.24 : 7,467.78 = 1,515.52 : x
2. Step 2: Convert to fraction form
   4,978.24/7,467.78 = 1,515.52/x
3. Step 3: Cross multiply
   4,978.24x = 7,467.78 × 1,515.52
4. Step 4: Simplify right side
   4,978.24x = 11,317,569.95
5. Step 5: Solve for x
   x = 11,317,569.95/4,978.24
6. Step 6: Final answer
   x = 2,273.41