Finding the Fourth Proportional to 2,119.25, 3,178.83 and 948.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.25 : 3,178.83 = 948.98 : x
2. Step 2: Convert to fraction form
   2,119.25/3,178.83 = 948.98/x
3. Step 3: Cross multiply
   2,119.25x = 3,178.83 × 948.98
4. Step 4: Simplify right side
   2,119.25x = 3,016,646.09
5. Step 5: Solve for x
   x = 3,016,646.09/2,119.25
6. Step 6: Final answer
   x = 1,423.45