Finding the Fourth Proportional to 1,923.68, 2,654.68 and 1,039.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,923.68 : 2,654.68 = 1,039.49 : x
2. Step 2: Convert to fraction form
   1,923.68/2,654.68 = 1,039.49/x
3. Step 3: Cross multiply
   1,923.68x = 2,654.68 × 1,039.49
4. Step 4: Simplify right side
   1,923.68x = 2,759,503.18
5. Step 5: Solve for x
   x = 2,759,503.18/1,923.68
6. Step 6: Final answer
   x = 1,434.49