Finding the Fourth Proportional to 1,764.24, 2,434.62 and 978.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,764.24 : 2,434.62 = 978.27 : x
2. Step 2: Convert to fraction form
   1,764.24/2,434.62 = 978.27/x
3. Step 3: Cross multiply
   1,764.24x = 2,434.62 × 978.27
4. Step 4: Simplify right side
   1,764.24x = 2,381,715.71
5. Step 5: Solve for x
   x = 2,381,715.71/1,764.24
6. Step 6: Final answer
   x = 1,350.00