Finding the Fourth Proportional to 2,796.80, 4,195.83 and 947.81

Step by Step Solution

1. Step 1: Write the proportion equation
   2,796.80 : 4,195.83 = 947.81 : x
2. Step 2: Convert to fraction form
   2,796.80/4,195.83 = 947.81/x
3. Step 3: Cross multiply
   2,796.80x = 4,195.83 × 947.81
4. Step 4: Simplify right side
   2,796.80x = 3,976,849.63
5. Step 5: Solve for x
   x = 3,976,849.63/2,796.80
6. Step 6: Final answer
   x = 1,421.93