Finding the Fourth Proportional to 4,978.16, 7,468.31 and 1,515.32

Step by Step Solution

1. Step 1: Write the proportion equation
   4,978.16 : 7,468.31 = 1,515.32 : x
2. Step 2: Convert to fraction form
   4,978.16/7,468.31 = 1,515.32/x
3. Step 3: Cross multiply
   4,978.16x = 7,468.31 × 1,515.32
4. Step 4: Simplify right side
   4,978.16x = 11,316,842.17
5. Step 5: Solve for x
   x = 11,316,842.17/4,978.16
6. Step 6: Final answer
   x = 2,273.30