Finding the Fourth Proportional to 978.31, 1,468.61 and 773.02

Step by Step Solution

1. Step 1: Write the proportion equation
   978.31 : 1,468.61 = 773.02 : x
2. Step 2: Convert to fraction form
   978.31/1,468.61 = 773.02/x
3. Step 3: Cross multiply
   978.31x = 1,468.61 × 773.02
4. Step 4: Simplify right side
   978.31x = 1,135,264.90
5. Step 5: Solve for x
   x = 1,135,264.90/978.31
6. Step 6: Final answer
   x = 1,160.43