Finding the Fourth Proportional to 1,789.40, 2,469.42 and 1,003.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.40 : 2,469.42 = 1,003.47 : x
2. Step 2: Convert to fraction form
   1,789.40/2,469.42 = 1,003.47/x
3. Step 3: Cross multiply
   1,789.40x = 2,469.42 × 1,003.47
4. Step 4: Simplify right side
   1,789.40x = 2,477,988.89
5. Step 5: Solve for x
   x = 2,477,988.89/1,789.40
6. Step 6: Final answer
   x = 1,384.82