Finding the Fourth Proportional to 1,789.32, 2,469.20 and 1,003.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,789.32 : 2,469.20 = 1,003.36 : x
2. Step 2: Convert to fraction form
   1,789.32/2,469.20 = 1,003.36/x
3. Step 3: Cross multiply
   1,789.32x = 2,469.20 × 1,003.36
4. Step 4: Simplify right side
   1,789.32x = 2,477,496.51
5. Step 5: Solve for x
   x = 2,477,496.51/1,789.32
6. Step 6: Final answer
   x = 1,384.60