Finding the Fourth Proportional to 1,789.64, 2,469.82 and 1,003.74

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.64 : 2,469.82 = 1,003.74 : x
2. Step 2: Convert to fraction form
   1,789.64/2,469.82 = 1,003.74/x
3. Step 3: Cross multiply
   1,789.64x = 2,469.82 × 1,003.74
4. Step 4: Simplify right side
   1,789.64x = 2,479,057.13
5. Step 5: Solve for x
   x = 2,479,057.13/1,789.64
6. Step 6: Final answer
   x = 1,385.23