Finding the Fourth Proportional to 7,173.02, 10,760.16 and 1,978.90

Step by Step Solution

1. Step 1: Write the proportion equation
   7,173.02 : 10,760.16 = 1,978.90 : x
2. Step 2: Convert to fraction form
   7,173.02/10,760.16 = 1,978.90/x
3. Step 3: Cross multiply
   7,173.02x = 10,760.16 × 1,978.90
4. Step 4: Simplify right side
   7,173.02x = 21,293,254.54
5. Step 5: Solve for x
   x = 21,293,254.54/7,173.02
6. Step 6: Final answer
   x = 2,968.52