Finding the Fourth Proportional to 2,633.67, 3,951.15 and 784.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,633.67 : 3,951.15 = 784.77 : x
2. Step 2: Convert to fraction form
   2,633.67/3,951.15 = 784.77/x
3. Step 3: Cross multiply
   2,633.67x = 3,951.15 × 784.77
4. Step 4: Simplify right side
   2,633.67x = 3,100,749.94
5. Step 5: Solve for x
   x = 3,100,749.94/2,633.67
6. Step 6: Final answer
   x = 1,177.35