Finding the Fourth Proportional to 1,399.93, 1,929.89 and 1,001.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399.93 : 1,929.89 = 1,001.48 : x
2. Step 2: Convert to fraction form
   1,399.93/1,929.89 = 1,001.48/x
3. Step 3: Cross multiply
   1,399.93x = 1,929.89 × 1,001.48
4. Step 4: Simplify right side
   1,399.93x = 1,932,739.09
5. Step 5: Solve for x
   x = 1,932,739.09/1,399.93
6. Step 6: Final answer
   x = 1,380.60