Finding the Fourth Proportional to 1,054.34, 1,456.92 and 1,003.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,054.34 : 1,456.92 = 1,003.76 : x
2. Step 2: Convert to fraction form
   1,054.34/1,456.92 = 1,003.76/x
3. Step 3: Cross multiply
   1,054.34x = 1,456.92 × 1,003.76
4. Step 4: Simplify right side
   1,054.34x = 1,462,398.02
5. Step 5: Solve for x
   x = 1,462,398.02/1,054.34
6. Step 6: Final answer
   x = 1,387.03