Finding the Fourth Proportional to 2,953.68, 4,429.56 and 978.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.68 : 4,429.56 = 978.84 : x
2. Step 2: Convert to fraction form
   2,953.68/4,429.56 = 978.84/x
3. Step 3: Cross multiply
   2,953.68x = 4,429.56 × 978.84
4. Step 4: Simplify right side
   2,953.68x = 4,335,830.51
5. Step 5: Solve for x
   x = 4,335,830.51/2,953.68
6. Step 6: Final answer
   x = 1,467.94