Finding the Fourth Proportional to 2,953.33, 4,429.74 and 978.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,953.33 : 4,429.74 = 978.75 : x
2. Step 2: Convert to fraction form
   2,953.33/4,429.74 = 978.75/x
3. Step 3: Cross multiply
   2,953.33x = 4,429.74 × 978.75
4. Step 4: Simplify right side
   2,953.33x = 4,335,628.31
5. Step 5: Solve for x
   x = 4,335,628.31/2,953.33
6. Step 6: Final answer
   x = 1,468.05