Finding the Fourth Proportional to 1,292.54, 1,783.83 and 994.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,292.54 : 1,783.83 = 994.10 : x
2. Step 2: Convert to fraction form
   1,292.54/1,783.83 = 994.10/x
3. Step 3: Cross multiply
   1,292.54x = 1,783.83 × 994.10
4. Step 4: Simplify right side
   1,292.54x = 1,773,296.48
5. Step 5: Solve for x
   x = 1,773,296.48/1,292.54
6. Step 6: Final answer
   x = 1,371.95