Finding the Fourth Proportional to 2,365.46, 3,548.88 and 978.87

Step by Step Solution

1. Step 1: Write the proportion equation
   2,365.46 : 3,548.88 = 978.87 : x
2. Step 2: Convert to fraction form
   2,365.46/3,548.88 = 978.87/x
3. Step 3: Cross multiply
   2,365.46x = 3,548.88 × 978.87
4. Step 4: Simplify right side
   2,365.46x = 3,473,892.17
5. Step 5: Solve for x
   x = 3,473,892.17/2,365.46
6. Step 6: Final answer
   x = 1,468.59