Finding the Fourth Proportional to 2,710.34, 4,063.08 and 978.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,710.34 : 4,063.08 = 978.56 : x
2. Step 2: Convert to fraction form
   2,710.34/4,063.08 = 978.56/x
3. Step 3: Cross multiply
   2,710.34x = 4,063.08 × 978.56
4. Step 4: Simplify right side
   2,710.34x = 3,975,967.56
5. Step 5: Solve for x
   x = 3,975,967.56/2,710.34
6. Step 6: Final answer
   x = 1,466.96