Finding the Fourth Proportional to 1,269.54, 1,901.78 and 994.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,269.54 : 1,901.78 = 994.34 : x
2. Step 2: Convert to fraction form
   1,269.54/1,901.78 = 994.34/x
3. Step 3: Cross multiply
   1,269.54x = 1,901.78 × 994.34
4. Step 4: Simplify right side
   1,269.54x = 1,891,015.93
5. Step 5: Solve for x
   x = 1,891,015.93/1,269.54
6. Step 6: Final answer
   x = 1,489.53