Finding the Fourth Proportional to 2,633.54, 3,949.49 and 784.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,633.54 : 3,949.49 = 784.31 : x
2. Step 2: Convert to fraction form
   2,633.54/3,949.49 = 784.31/x
3. Step 3: Cross multiply
   2,633.54x = 3,949.49 × 784.31
4. Step 4: Simplify right side
   2,633.54x = 3,097,600.83
5. Step 5: Solve for x
   x = 3,097,600.83/2,633.54
6. Step 6: Final answer
   x = 1,176.21