Finding the Fourth Proportional to 1,774.93, 2,449.46 and 978.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,774.93 : 2,449.46 = 978.34 : x
2. Step 2: Convert to fraction form
   1,774.93/2,449.46 = 978.34/x
3. Step 3: Cross multiply
   1,774.93x = 2,449.46 × 978.34
4. Step 4: Simplify right side
   1,774.93x = 2,396,404.70
5. Step 5: Solve for x
   x = 2,396,404.70/1,774.93
6. Step 6: Final answer
   x = 1,350.14