Finding the Fourth Proportional to 3,575.94, 5,363.73 and 978.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,575.94 : 5,363.73 = 978.89 : x
2. Step 2: Convert to fraction form
   3,575.94/5,363.73 = 978.89/x
3. Step 3: Cross multiply
   3,575.94x = 5,363.73 × 978.89
4. Step 4: Simplify right side
   3,575.94x = 5,250,474.84
5. Step 5: Solve for x
   x = 5,250,474.84/3,575.94
6. Step 6: Final answer
   x = 1,468.28