Finding the Fourth Proportional to 1,774.91, 2,449.29 and 978.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,774.91 : 2,449.29 = 978.37 : x
2. Step 2: Convert to fraction form
   1,774.91/2,449.29 = 978.37/x
3. Step 3: Cross multiply
   1,774.91x = 2,449.29 × 978.37
4. Step 4: Simplify right side
   1,774.91x = 2,396,294.72
5. Step 5: Solve for x
   x = 2,396,294.72/1,774.91
6. Step 6: Final answer
   x = 1,350.09