Finding the Fourth Proportional to 978.72, 1,468.25 and 362.87

Step by Step Solution

1. Step 1: Write the proportion equation
   978.72 : 1,468.25 = 362.87 : x
2. Step 2: Convert to fraction form
   978.72/1,468.25 = 362.87/x
3. Step 3: Cross multiply
   978.72x = 1,468.25 × 362.87
4. Step 4: Simplify right side
   978.72x = 532,774.72
5. Step 5: Solve for x
   x = 532,774.72/978.72
6. Step 6: Final answer
   x = 544.36