Finding the Fourth Proportional to 2,365.88, 3,549.25 and 978.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365.88 : 3,549.25 = 978.47 : x
2. Step 2: Convert to fraction form
   2,365.88/3,549.25 = 978.47/x
3. Step 3: Cross multiply
   2,365.88x = 3,549.25 × 978.47
4. Step 4: Simplify right side
   2,365.88x = 3,472,816.90
5. Step 5: Solve for x
   x = 3,472,816.90/2,365.88
6. Step 6: Final answer
   x = 1,467.88