Finding the Fourth Proportional to 1,769.72, 2,442.17 and 1,003.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,769.72 : 2,442.17 = 1,003.12 : x
2. Step 2: Convert to fraction form
   1,769.72/2,442.17 = 1,003.12/x
3. Step 3: Cross multiply
   1,769.72x = 2,442.17 × 1,003.12
4. Step 4: Simplify right side
   1,769.72x = 2,449,785.97
5. Step 5: Solve for x
   x = 2,449,785.97/1,769.72
6. Step 6: Final answer
   x = 1,384.28